12
Trends, Networks, and Critical
Thinking in the 21st Century
Quarter 3 – Module 5:
Planetary Networks: Climate Change
1
Trends, Networks, and Critical Thinking in the 21st Century – Grade 12
Quarter 3 – Module 5: Planetary Networks: Climate Change
First Edition, 2021
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12
Trends, Networks,
and Critical Thinking
st
in the 21 Century
Quarter 3 – Module 5:
Planetary Networks: Climate Change
Introductory Message
This Self-Learning Module (SLM) is prepared so that you, our dear learners, can
continue your studies and learn while at home. Activities, questions, directions,
exercises, and discussions are carefully stated for you to understand each lesson.
Each SLM is composed of different parts. Each part shall guide you step-by-step
as you discover and understand the lesson prepared for you.
Pre-tests are provided to measure your prior knowledge on lessons in each SLM.
This will tell you if you need to proceed on completing this module or if you need to
ask your facilitator or your teacher’s assistance for better understanding of the
lesson. At the end of each module, you need to answer the post-test to self-check
your learning. Answer keys are provided for each activity and test. We trust that
you will be honest in using these.
In addition to the material in the main text, Notes to the Teacher are also provided
to our facilitators and parents for strategies and reminders on how they can best
help you on your home-based learning.
Please use this module with care. Do not put unnecessary marks on any part of
this SLM. Use a separate sheet of paper in answering the exercises and tests. And
read the instructions carefully before performing each task.
If you have any questions in using this SLM or any difficulty in answering the tasks
in this module, do not hesitate to consult your teacher or facilitator.
Thank you.
iii
Let Us Learn
This module brings you to the real scenario of the condition
brought about by climate change. It helps you understand the consequences
of one’s action on how consumption and production patterns affect climate
change. It will further discuss the effects and the steps to address climate
change.
After going through this module, you are expected to:
1. Explain the effects of consumption and production patterns on climate
change (HUMSS_MCT12-Ih-i-2)
2. Discuss personal contributions that can actually solve the problem of
climate change (HUMSS_MCT12-Ih-i-3)
3. Make a stand on how the consequences of one’s action affect the lives of
others and the environment (HUMSS_MCT12-Ih-i-4)
1
Let Us Try
As an initial activity, you will be assessed on your prior knowledge.
This is to find out what are the things you need to learn about the subject
matter.
Direction: Write the letter of the correct answer in your answer sheet.
1. What causes the greenhouse effect?
a) Greenhouse gases in the lower atmosphere absorbing solar
radiation
b) Greenhouse gases in the lower atmosphere absorbing radiation
from the earth's surface, and preventing much of it escaping
into space
c) Too much heat in the atmosphere
d) Too much sunshine reaching Earth
2. Which of the following activities contribute the most to carbon
emissions globally?
a) Energy Supply
c) Agriculture
b) Transport
d) Forestry
3. What is NOT believed to be a cause global warming?
a) Increase in greenhouse gases
c) Burning fossil fuels
b) Increase in human populations
d) None of the above
4. Which particular effect of Global warming has affected many parts of
earth?
a) Cooler temperatures
c) Season changes
b) Melting ice
d) None of the above
5. What
earth
a)
b)
global issue refers to the rise in average surface temperatures on
due to the burning of fossil fuels?
Climate change
c) Ultraviolet rays
El Niño
d) Heat wave
6. Which of the following statements best describe the solutions to
climate change?
a) Stop down the cutting of trees
b) Less use of the fossil fuels
c) More consumption on energy
d) Focused on the renewal energy
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7. Which of these statements is the true cause of the greenhouse effect?
a) Excess of nitrogen in the atmosphere
b) Excess of carbon dioxide in the atmosphere
c) Heat from the sun that reaches the surface of the earth
d) All of the above
8. What
a)
b)
c)
d)
can you do to prevent climate change in your level?
Drive your car less and use public transport
Turn off the lights when not in use
Recycle the materials
All of the above
9. The following activities are the causes of climate change, EXCEPT?
a) Rise of the sea levels
c) Deforestation
b) Burning of fossil fuels
d) Food consumption
10. Which of the following statements is true about climate change?
a) Global sea level is rising.
b) Getting rid of fuel companies is the best solutions for climate
change.
c) Majority of the scientists agree that climate change is caused by
natural phenomenon.
d) Humans are insignificant to affect global climate.
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Lesson
1
Effects of Consumption and
Production Patterns on
Climate Change
Let Us Study
Weather tells the environmental condition in a specific place. It can
be rainy, sunny, windy or snowy while Climate describes the weather
conditions expected in a particular place in a specific time of the year.
Climate change refers to the significant change in the average
conditions of temperature and rainfall in a particular region over a long
period of time. An amazing scientific accord highlighted that global climate
change is due primarily to the human use of fossil fuels that releases
dioxide and alternative greenhouse gases into the air. The gases trap heat
inside the atmosphere, which may have a variety of effects on ecosystems.
the results square measure the following; (a) rising ocean levels, (b) severe
weather events, and (d) droughts that render landscapes additional
vulnerable to wildfires.
It is already happening in our planet even before it is inhabited by
humans but scientists have observed that changes nowadays are too
unusual, making them more alarmed. For over 20,000 years, much of the
European regions were covered with glaciers. Today, climate all over Europe
is quite warmer compared to its condition 20,000 years ago. Globally,
warming temperatures and changes in precipitation are observed. The
results of all these climatic changes include:
A. sea levels rising,
B. fewer mountain glaciers,
C. faster melting of the ice in Greenland, Antarctica and the Arctic, and
D. changes in flower and plant blooming times.
A lot of factors are contributory to the global climate change but
scientists have agreed that human activities have been the biggest
contributor to such change. Burning fuel in factories, cars and buses affects
the earth’s natural greenhouse. The heat of the planet is trapped in the
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atmosphere making the Earth warmer. This phenomenon is called the
greenhouse effect.
Both production and consumption of goods contribute to global
warming. Production as in manufacturing utilizes technology that emits
large amount of carbon in the atmosphere. Distribution of goods such as
shipping and storage in warehouses and distribution centers also produces
hydrofluorocarbons that contribute to the greenhouse effect. Consumption
produces wastes especially non–biodegradable one that pollutes the
atmosphere when disposed through burning which also releases carbons.
The food consumption and production have a major impact on the
surroundings. The means we have a tendency to consume has each direct
and indirect impact on the surroundings. An example of this consumption is
that the uses of energy in our homes like television radio, computer, cars
and public utility jeepney that emit harmful gasses and caused pollution
and increased emissions of greenhouse gases that results in global climate
change.
Consumption conjointly vie an indirect impact towards our
surroundings from the assembly, process and transportation of the products
that we have a tendency to consume daily. Examples of this production of
goods we consume are the can goods, soft drinks, processed foods, shampoo
and many more..
In association, with consumption and production pattern within the
Philippines, the state of surroundings in our country along with the
emissions of greenhouse gasses, indicators on pollution and also the
generation of material discovered that each one indicators show
environmental degradation all told the domains being assessed (Sta.
Romana, 2017).
Disadvantages
A. Failing economy will have a domino effect on its trading partner in
another counter. This is evident among the European Union in which
bail-out was made to save an economically failing nation.
B. Wealth and power are concentrated in the hands of small group of
corporate elite putting smaller competitors in disadvantageous
situation resulting to weakening of their business capability that
usually ends up selling their business to bigger companies.
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C. Introduction of international products and brand makes way for
business domination of bigger and developed countries making the
cultural exchange one-sided in favor of those who dominate the
market.
Six Ways Climate Change Will Affect PH Cities
Pia Ranada
January 22, 2014
Rappler.com
El Niño, sea level rise, ocean acidification are just some scenarios
PH cities face due to climate change.
Manila, Philippines – Climate change is happening now and it is
happening, not in far-flung corners of the world, but in human
communities.
Scientists say human activities are largely responsible for the
continued increase in average global temperatures, which causes climate
change. Global greenhouse gases emitted by the fossil fuel industry
(which gives us electricity and fuels our cars) trap heat in the Earth’s
atmosphere thus warming the entire planet.
Philippine cities will likely to experience at least one of these effects
of climate change:
1. More intense El Niño
The El Niño phenomenon occurs when the surface of ocean waters
on the southern Pacific becomes abnormally warm. The energy created
by this warming is so great that it can create an imbalance in the
weather in different parts of the world. In Southeast Asia, it can lead to
abnormally dry conditions.
El Niño can also make other weather events like storms highly
unpredictable. Weather will have extreme highs and lows, making it
“increasingly difficult to accurately predict weather patterns for purposes
of planning and normal business operations,” says a WWF-Philippines
study.
2. Sea surface temperatures to rise
By the end of the century, sea surface temperatures are expected
to rise by 1 to 4 degrees Celsius. This can lead to more powerful storms
because storms get their strength from heat rising from the sea.
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In the Philippines, 4 and 5 degrees Celsius spike above the normal
sea surface temperature have been recorded. Warmer seas kill coral reefs
and can thus lead to a decline in fish catch, putting food security in
danger.
3. Ocean acidification
The shift in the pH levels of our oceans can lead to widespread
coral reef death. Because of the imbalance, shrimps are not able to
develop skins, oyster cannot develop shells. Fish larvae may not be able
to develop bones. This further endangers food security and the livelihood
of fishermen.
4. Sea levels to rise by 4 to 6 meters
Current data show an increase in sea surface heights. Scientists
say this is due to the melting of ice sheets in northern portions of the
globe like Antarctica and Greenland. Sea level rise by 4 to 6 meters can
submerge low-lying communities like Tacloban City which stands 3
meters above sea level.
5. Tropical cyclones to intensify
The creation of tropical cyclones is already being recorded in areas
where the phenomenon had never been observed. On Nov. 8, 2013,
Super Typhoon Yolanda (Haiyan), said to be the strongest storm in
recorded history, devastated cities in the Visayas.
6. Rainfall, river flow, and flooding to intensify
Monsoon rainfall in the Philippines will reach new highs and lows.
Some parts of the country will experience an upward trend in rainfall
while other parts will experience an intensification of drought. These two
extreme poles of weather will make it more difficult for agriculture and
aquaculture sectors which are highly dependent on weather.
Philippine cities are already experiencing unprecedented amounts
of rainfall. In Tacloban City, rainfall increased by 257% from 1998 to
2011. More rainfall will lead to more flooding and can trigger landslides
in upland communities.
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Let Us Practice
Direction: True or False. Analyze each statement. Write Pak If the
statement is true but if the statement is false write Ganern. Write your
answer on the space provided.
________1. Scientists believe that as the Earth continues to warm up, we are
experiencing weather-related disasters.
________2. When we burn fossil fuels we release oxygen and carbon dioxide
in the air.
________3. Most of the harmful gases are released either by automobiles or
power plants.
________4. The food consumption and production have no significant impact
on the environment.
________5. Renewable energy is one of the possible solutions for climate
change.
________6. Volcanic eruptions are natural event that affect the climate
change.
________7. Agriculture activities contribute the most to carbon emissions
globally.
________8. The increase of human populations is NOT believed to cause
global warming.
________9. Climate change is the rise in average surface temperatures on
Earth, mostly due to the burning of fossil fuels.
________10. Fossil fuels are natural fuel such as coal or gas, formed in the
geological past from the remains of living organisms.
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Let Us Practice More
Direction: Examine the picture below. Observe every detail and answer
the questions that follow. Write your answer on your answer sheet.
Source: http://www.foodsystemprimer.org/food-production/food-and-climate-change/
Guide Questions:
1. What may have caused the death of the cattle?
2. How can humans be contributory to the death of those cattle?
3. What can be done to prevent such event? Justify your answer.
Let Us Remember
Direction: In 2-3 sentences, answer the given questions below.
1. What are the six ways climate change will affect the Philippines?
2. How could people deal with the effects of climate change?
3. What could be the potential solutions to climate change?
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Let Us Assess
Direction: Write C if the statement is the cause of climate change and E if
its effect.
_____________1. Burning of fossil fuels
_____________2. Landslides
_____________3. Deforestation
_____________4. Food consumption
_____________5. Public Utility Jeep
_____________6. El Niño and La Niña
_____________7. Manufacturing Industries
_____________8. Factories
_____________9. Rising of sea levels
_____________10. Wildfires in the forest
Let Us Enhance
Direction: List down manufacturing and production activities and give their
harmful effects to the environment. Do this in your notebook
Manufacturing and Production
Activities
Harmful Environmental
Activities
1.
2.
3.
4.
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Let Us Reflect
Direction: In writing your reflection, you have to complete the
sentence below.
I learned that _____________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
I realized that _____________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
If given a chance __________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
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Lesson
2
Discuss personal
contributions that can
actually solve the problem
of climate change
Let Us Study
Paskill (2018) suggested eight (8) simple ways to help care our
environment. In every little thing you make a difference.
1. Use Reusable luggage
If you're attending to mall for searching like grocery, food, and
garments you would like to apply the plastic luggage. Mistreatment reusable
luggage helps the atmosphere. Plastic grocery-type luggage that get thrown
out find yourself in landfills and it takes years to decompose.
2. Print as very little as Necessary
Using such a lot paper is damaging to the atmosphere. If possible
recycle the utilization writing paper for printing. If not, print on either side of
the page to scale back the number of paper used.
3. Recycle
Instead of throwing recyclables within the trash along with your nonrecyclables, recycle the materials of fine use. create a degree to require an
additional step to separate reclaimable materials like cans, bottles, plastic
and papers.
4. Use a Reusable nutrient Containers
In most school, fruit juices is served mistreatment plastic cups, rather
than shopping for this cup of drinks on an individual basis, deliberate to use
a reusable bottle. Not solely can this facilitate the atmosphere it saves your
money for several of the campuses that provide water fountains designed for
drinking still as for replacement reusable water bottles.
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5. Don’t Throw Your Notes Away
Keeping your notes can facilitate the scholars by having the ability to
scan what they're learning within the words of another student. If you can’t
notice anyone to convey the notes to, at the terribly least, recycle the paper
you used.
6. Save Electricity!
Use energy-efficient light-weight bulbs rather than regular bulbs. They
last longer, which can save your money. Make you turn off lights, the TV,
and other appliances when you are not using them.
7. Save Water
Water is wasted a lot frequently than we can see. Shut down the
faucet as you're brushing your teeth. Don’t turn your shower on till you’re
able to get in and wash your hair. Limit your water usage as you wash
dishes.
8. Avoid Taking Cars or Carpool as possible
Cars square measure harmful to the atmosphere. Taking public
transportation, walking, or riding a motorcycle are better options that help
the environment and your budget, as well as getting some exercise.
Madaan (2018) also suggested that there is a solution to each problem,
and suggested possible solutions to climate change namely:
1. Stop Cutting down Trees: Believe it or not, cutting down trees is the
prime reason of the climate change. Planting new trees can quickly scale
back the speed of the emission of gases.
2. Control Population: Yes, if the population is controlled, then climate
change can also be controlled. How? Putting in simpler words, more
number of individuals suggests that additional demand of resources like
food and shelter resulted in additional usage or utilization of the earth.
3. Less use of Fossil Fuels: The high discharges of the greenhouses gases
are diminishing the ozone layer which gives global warming. It is then one
of the major causes of climate change.
4. Unplug your Devices: In almost every house, there are at least a dozen of
appliances which includes air conditioner, television, microwave, washing
machine and others. These devices lead to global warming, hence the
climate change.
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5. Focus on Renewable Energy: Fossil fuels are going to be finished in an
exceedingly few decades and it's time to maneuver towards the renewable
energy. In several elements of the globe, several cities are using the
energy from the renewable sources of energy which incorporates wind,
solar, tidal, ocean and many more.
6. Control of Methane Leaks: Surprisingly, methane is a more potent
greenhouse gas than carbon dioxide. Every month, there is a huge
quantity of methane leak from pipeline, storage tanks, other
infrastructure, garbage dumps and coal mines.
7. Tougher Emissions and Efficiency Standards: Most of the harmful
gases are released either by automobiles or power plants. Many countries
have already put strict rules in controlling the emissions.
8. Experimenting the Earth: There are many experiments being done on
Earth which might control climate change. Some ideas like, Geoengineering, radical interventions to either block sunlight or reduce
greenhouse gas are probably the last options to control the climate
change.
9. Upgrade in infrastructure: Buildings require cement and it is produced
by heating limestone giving rise to the carbon dioxide level. Upgrade in
infrastructure like, making the roads perfect, improving cement-making
processes and investing in new infrastructure or radically upgrading
existing highways and transmission lines would cut emission of
greenhouse gas and control climate change.
10. Personal Solutions to Global Warming: There are many steps which
everyone can take in order to control the climate change. A small step by
anyone can make a big difference.
 Drive less and cycle more while going to school or work.
 Upgrade your refrigerator and air conditioner, especially if they
are more than five years old.
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Let Us Practice
Direction: Enumerate things an individual like you can do to save the
environment. Make a work plan using the given template.
Objectives
Activity
Persons
Involved
Strategy
Source of
Fund
Time
Frame
Let Us Practice More
Direction: List activities that exemplify the ways on how we take good care
for the environment.
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Let Us Remember
Things to Remember!
Carbon emission from your home is directly correlated to everyday
energy consumption. One way to reduce your carbon footprint is to improve
energy efficiency:
Inside your home:





When appliances are not in use, turn them off and unplug them. Even
small appliances like cell phone chargers waste energy when plugged
in all day. It is called ghost-electricity.
Take shorter, cooler showers and turn off the tap when brushing your
teeth.
Recycle everything you can.
Replace incandescent light bulbs with CFL low energy bulbs, which
use just 20% of the energy of a normal light bulb and last 15 times
longer.
When replacing older appliances, always opt for appliances that use
less power and receive a good energy rating.
At your office:





Only print as many copies as absolutely needed. Instead of having
each employee have their own files, create a central filing system to
avoid having to make many copies of the same documents.
Use smaller fonts when printing internal documents to save paper and
ink.
Recycle everything, including ink cartridges and toner. Ask local
suppliers if they can deliver supplies in reusable bins rather than
cardboard boxes.
Turn off and unplug equipment when not in use.
Telecommunicate whenever possible, but make a commitment to do it
at least one day per week.
For your meetings:



Ask your caterer for biodegradable tableware (plates, cups, utensils,
etc.) or use china and metal silverware.
Monitor meeting room temperatures. Turn the heat down a few degrees
in winter and up a few degrees in summer, and encourage attendees to
dress in layers.
Make sure lights and AV equipment in session rooms are turned off
when not in use. Ask your AV provider to unplug equipment at night.
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

Offer a carbon-offset donation on your registration form; Many
companies will plant trees for as little as 50 cents each.
Provide materials that are ecofriendly: recyclable, printed on recycled
paper, or go paperless altogether.
Let Us Assess
Direction: True or False. Analyze each statement. Write T If the statement
is true but if the statement is false write F. Write your answer on the space
provided.
________1. It takes thousands of years for plastic grocery-type bags to
decompose that get thrown in landfills.
________2. Using so much paper is detrimental to the environment.
________3. Using plastic cups help the environment as it helps for refilling
water or juices.
________4. Use regular bulbs instead of energy-efficient light bulbs.
________5. Turning off lights, TV, and other appliances when not in use help
conserve our energy.
________6. Taking public transportation is better than walking, or riding a
bike as best options that help our environment.
________7. Using cars or any public transportation are harmful to the
environment.
________8. Recycling is better than reusing.
________9. The more people recycle, the less the people dispose their garbage
________10. Reduce, remove and recycle are the 3 R's of the environment.
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Let Us Enhance
Direction: List down some daily activities and tell how these contribute to
climate change. Also, provide advisable corrective actions.
Daily Activities
Climate Change
Contribution
Corrective Actions
1.
2.
3.
4.
Let Us Reflect
Direction: Create a pledge of action in promoting environmental
responsibility to solve global warming. Also, indicate your reflections.
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
In this lesson:
I understand that… ______________________________________________________
I realize that… ___________________________________________________________
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Lesson Make a stand on how the consequences
3
of one’s action affect the lives of others
and the environment
Let Us Study
There is broad-based agreement within the scientific community that
climate change is real. The U.S. Environmental Protection Agency, the
National Aeronautics and Space Administration, and the National Oceanic
and Atmospheric Administration correspond that climate change is indeed
happening and is almost certainly due to human activity. The primary
reason behind climate change is the burning of fossil fuels, such as oil and
coal, which emits greenhouse gases into the atmosphere— primarily carbon
dioxide. Other human activities, such as agriculture and deforestation, also
contribute to the production of greenhouse gases that cause climate change.
Even small increases in Earth’s temperature caused by climate change
can have severe effects. The rising sea level due to the melting of the polar
ice caps is caused by climate change. The warming ocean temperatures are
associated with stronger and more frequent storms; additional rainfall,
particularly during severe weather events, leads to flooding and other
damage; an increase in the incidence and severity of wildfires threatens
habitats, homes, and lives; and heat waves contribute to human deaths and
other consequences.
Global warming causes change in climate patterns. The consumption
of paper leads to production of paper industries, the use of woods for
constructions
of
houses
and
turning
forest
to
residential/industrial/agricultural lands leads towards the destruction of
forests and killing of trees which resolves to reach highest heat index.
Overharvesting, deforestation, land degradation, and exploiting nature
for natural resources for human needs can leading toward having limited
resources in the future, it destroys animals’ natural habitats and cause to
global warming due to the devastating effects due human demands.
The continuous development and manufacturing of plastics and
rubber products can destroy marine ecosystem and its natural habitat,
which leads to existence of invasive species that threatened other species
19
and habitat change. The more disruptions human can do, the more
damaging effects it creates, and the atmospheric balance that maintains the
Earth’s climate becomes unstable that leads to climate change.
The increasing release of carbon dioxide(CO2) by burning fossil fuels,
coal, oil, and gas as well as the greenhouse gases which includes water
vapor(H20), and smaller but constant emission of methane(CH4),
Chlorofluorocarbons(CFCs) and nitrous oxide(N20), which are trap in the
atmosphere create a Greenhouse Effect heat-trapping blanket that makes
the Earth warmer which changes the climate condition.
Combating Climate Change:
1. Adaptation
• Integrating the findings of researches into national decision-making,
planning and adaptation practices
• Knowledge sharing and technology transfer
• Helping to strengthen national capacity for adaptation planning using
knowledge, technology and policy support
2. Mitigation
• Promote public/private partnerships and support application for best
practice codes
• Develop, refine and support the application of sustainability
• Establish and support knowledge networks
3. Science
• Undertake science-based assessment to increase awareness
• Provide technical support and training for climate change negotiators
and stakeholders
• Provide advisory and support services
4. Communication
• Use media and outreach activities to help deliver key messages on
climate change
• Help communicate successful climate change programmes to key
stakeholders to promote replication of best practices
20
• Promote climate awareness including targeted campaigns and special
events
Let Us Practice
Direction: How can you help address climate change at home, in the office,
and on the road/community? Write your brief personal contributions using
the graphic organizer given below.
HOME
OFFICE
ROAD/COMMUNITY
1.
1.
1.
2.
2.
2.
3.
3.
3.
4.
4.
4.
5.
5.
5.
Let Us Practice More
Direction: Give the harmful effects of climate change to the following
items:
Nature’s Elements
Harmful Effects of Climate
Change
1. wildlife
2. crop production
3. air quality
4. land use
5. water resources
21
Let Us Remember
Things to Remember!





People needs global awareness about climate change and its effects.
Human uncontrollable consumption and production patterns can lead to
loss of biodiversity and causes climate change.
Climate change is an increase in the average temperature of the earth's
atmosphere.
Greenhouse effect is referred to the warming results when solar radiation
is trapped by the atmosphere.
Building social network of support in the communities can help
Let Us Assess
Direction: Analyze the pictures and answers the questions below.
Guide questions
1. What was the picture all about?
2. In your own opinion, what is the relevance of these pictures to our
environment?
3. How do these consequences of human’s action affect the lives of others
and the environment?
22
Let Us Enhance
Direction: Create a slogan on your personal advocacy to fight climate
change and Explain. Write your slogan inside the box and your explanation
below.
Let Us Reflect
Direction: Explain the consequences of one’s action that affect the lives of
others and the environment.
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
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24
Let Us Reflect
Answers may vary.
Answer may vary.
1. C
2. E
3. C
4. C
5. C
6. E
7. C
8. C
9. E
10. E
Answers may vary.
Let Us Remember
Let Us Assess
Let Us Enhance
1. PAK
2. GANERN
3. PAK
4. GANERN
5. PAK
6. PAK
7. PAK
8. GANERN
9. PAK
10. PAK
Answers may vary.
Let Us Practice
Let Us Practice More
Let Us Try
1. C
2. B
3. D
4. B
5. D
6. C
7. B
8. D
9. A
10. A
Lesson 1
Answer Key to Activities
25
Let Us Reflect
Answers may vary.
1. T
2. T
3. F
4. F
5. T
6. F
7. T
8. T
9. T
10. T
Answers may vary.
Let Us Assess
Let Us Enhance
Answers may vary.
Answers may vary.
Let Us Practice
Let Us Practice More
Let Us Remember
Lesson 2
26
Let Us Reflect
Answers may vary.
Answers may vary.
Answers may vary.
Answers may vary.
Let Us Remember
Let Us Assess
Let Us Enhance
Answers may vary.
Answers may vary.
Let Us Practice
Let Us Practice More
Lesson 3
References
Mangiduyos, Gladys P. Trends, Networks, and Critical thinking in the 2st
Century. Manila, Philippines: REX Book Store, 2017.
National Geographics – natgeo.com/climate
https:/www3.epa.gov/climatechange.html
For inquiries or feedback, please write or call:
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E-mail Address:
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