Grade 10 Science
Name: __________________________________
LAST QUIZ: Climate Change
1) Circle the correct answer to the following multiple choice questions, and then rewrite the letter in the space
provided: (5 marks)
(i) The rainforests of Brazil are lush with vegetation and biodiversity. Under the canopy of trees, there is lots of
rainfall and warm temperatures. The rainforests can be classified into which climate zone?
a) tropical
b) moderate c) dry d) polar
_____
(ii) Which of the following statements is false?
When light energy that hits a particle of matter on the Earth:
a) 30 % of the energy is reflected back to space by clouds, the atmosphere and the Earth’s surface
b) The clouds, the atmosphere and the Earth’s surface also absorb the other 70 % of the light energy.
c) Plants use about 19 % of the energy to photosynthesize
d) The Earth’s surface and its atmosphere re-emit the exact same amount of energy back into space.
_____
(iii) Which of the following gases are able to absorb the thermal energy re-emitted by the Earth’s surface?
a) water, nitrogen, methane
b) carbon dioxide, water, oxygen
c) carbon dioxide, methane, oxygen
d) water, carbon dioxide, methane
_____
(iv) Which of the following statements is true, regarding the albedo effect?
a) Fresh snow has a lower albedo than water
b) Forests have a higher albedo than clouds.
c) Water has a lower albedo than clouds.
d) Dirt has a higher albedo than fresh snow.
_____
(v) Muskoka gets lots of snow in the winter due to the lake effect, which is caused by a body of water being:
a) upwind
b) downwind
c) unfrozen well into the winter
d) both (a) and c)
e) both (b) and (c)
_____
2) Fill in the blanks. Spelling counts! (7 marks)
a) As the climate gets warmer, there is more water vapour present in the atmosphere. Water vapour in low
lying clouds absorbs more energy being re-emitted by the Earth, causing the climate to get warmer. This is an
example of a _____________________________________________ loop.
b) The statement: “My weekend was great! Every day was hot and sunny!” describes the ________________.
c) Chlorofluorocarbons (CFC’s) have now been banned because they react with ________________________,
creating holes in the stratosphere at the poles, letting in too many harmful ________________ rays.
d) The greenhouse gas that is created in the vicinity of large cattle farms is ___________________________.
e) Oceans and forests are examples of ____________________________________ since they remove large
amounts of carbon dioxide from the atmosphere.
f) We know the amount of carbon dioxide levels and the temperature at the poles over many thousands of
years, because of the study of __________________________________.
3) State two reasons why it gets hotter as one moves closer to the equator and the sun shines more directly on
the Earth.
(2)
4) How does the water cycle help to transfer thermal energy from the oceans to the clouds?
(2)
5a) What are the products of respiration?
(1)
b) What are the products of burning fossil fuels?
(1)
c) Draw a diagram of one positive feedback loop that includes carbon dioxide and another that includes water
vapour.
(2)