Ecosystems
Unit 4: Environmental Protection
Pre Test
1.
Species are becoming extinct at a current rate of one species per
A.
B.
C.
D.
E.
2.
homogenous
stable
in danger
fragile
rapidly changing
Survival of one species is
A.
B.
C.
D.
E.
5.
food
decorations
medicines
fertilizers
wood
The greater number of species present and the more diverse the environment, the
more
it is.
A.
B.
C.
D.
E.
4.
hour
day
week
month
year
Survival of the diverse plants in the rainforests is important to humanity as they
are a good source of
.
A.
B.
C.
D.
E.
3.
.
of other species.
completely independent of the survival
always at the expense
dependent upon the survival
not related to the survival
more beneficial than the survival
Which of the following directly results from human pursuit of raising food?
A.
B.
C.
D.
E.
Excessive nitrates in lakes and ponds
Oil spills in oceans
Uncontrolled wildfires in forests
Decline in the numbers of elephants in the world
Decline in the number of people in the world
6.
Antibiotic resistance is usually caused by
A.
B.
C.
D.
E.
7.
in the
decreasing the amount of nitrates
increasing the amount of mercury
decreasing the amount of oxygen
increasing the amount of fish
decreasing the amount of lead
Which of the following would help protect the environment from human damage?
A.
B.
C.
D.
E.
10.
a decrease in the number of bears in the environment.
starvation among island-dwelling population.
a decrease in the nitrate concentration in the ocean.
extinction of some species of fish.
loss of other sea-dwelling animals.
Poor farming practices can damage the environment by
water.
A.
B.
C.
D.
E.
9.
failure of the drug company to make the correct drug
failure of the physician to prescribe the correct drug
failure of the patient to correctly take the drug
failure of the drug to kill the correct bacteria
failure of the research company to study the drug correctly
All of the following can result from over-fishing, except:
A.
B.
C.
D.
E.
8.
.
Increasing the amount of fertilizer usage to assist in growth of food crops
Allowing controlled removal of trees from National Forests
Eliminating several predatory species so that prey can flourish
Use of ethanol in gasoline to decrease reliance on fossil fuels
Using genetic engineering to make plant species more resistant to drought.
Poor farming practices could be corrected by:
A.
B.
C.
D.
E.
educating the farmers on best techniques for their region..
banning farming and encouraging the farmers to find other jobs.
asking the farmers to plant the same crop year after year.
frequently moving the farms as the nutrients in the soil become depleted.
introducing non-native animals into the area to reduce the amount of crop
loss due to native species.
11.
Which of the following suggestions would not help prevent and combat forest
fires?
A.
B.
C.
D.
E.
12.
Which of the following would be a reasonable method to reduce the amount of
nitrate runoff from over fertilization?
A.
B.
C.
D.
E.
13.
decrease in the nitrates in the water
increased numbers of forest fires
decrease in the growth of aquatic plants
depletion of the nutrients in the soil
decrease in genetic diversity of plants used for food
The insecticide, DDT, was used to control
A.
B.
C.
D.
E.
15.
Ban the use of fertilizer in agriculture.
Eliminate the availability of fertilizer to the homeowner.
Educate the public on the effects of over fertilization.
Add a chemical to the water to kill the algae before it can overgrow.
Require use of fertilizer without water, so that it will not runoff.
In an effort to produce more food cheaply through modern agricultural practice
has inadvertently resulted in
.
A.
B.
C.
D.
E.
14.
Allowing roads to be built through forests.
Banning campfires within forests.
Allowing removal of some trees from forests.
Allowing smaller forest fires to burn themselves out.
Allowing people to build houses within the forests.
populations of wild birds
non-native fish species in lakes and ponds
malaria in mosquito populations
the number of predators on the Galapagos Islands
overgrowth on non-native plants on poor farms
One problem with use of ethanol in gasoline is
A.
B.
C.
D.
E.
.
.
it does not work in cars
it reduces the amount of pollutants that a car produces
it requires more energy to make than it gives off when burned
it causes cars to produce more pollution and run less efficiently
it cannot be easily made
16.
By keeping forests in pristine or “untouched” condition and not allowing small
fires to burn:
A.
B.
C.
D.
E.
causes brush to collect at the base of trees, resulting in a fire hazard.
promotes the erosion of the soil due to death of smaller trees from lack of
sunlight.
results in a lack of diversity in the ecosystem as only one species of tree
thrives.
promotes natural selection, as more niches are developed.
is the only way to protect our forests from destruction by fire.