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2. How Do We Impact The Environment?
Test Description: Review 2
Instructions: Answer all questions to get your test result.
1) What percentage of the water on Earth is salt water?
A
70%
B
99%
C
97%
D
3%
2) What percentage of freshwater is frozen in ice?
A
2%
B
1%
C
4%
D
3%
3) True or False: 48% of freshwater is used by the public.
A
False
B
True
4) True or False: Most of the water pollution in the US comes from non point sources.
A
False
B
True
5) Which of the following does not impact water quality?
A
Waste Management
B
Level of oxygen
C
Deforestation
D
Agriculture
6) True or False: Too little oxygen in the water can kill marine life.
A
False
B
True
7) Nitrates in fertilizer seeping into the water promotes the growth of what type of organism?
A
Algae
B
None of the above
C
Fish
D
Shell Fish
8) Agal bloom is defined as?
A
Algae population stays the same
B
Algae population increases at a rapid rate.
C
Algae population decreases at a rapid rate
D
None of the above
9) Increased carbon dioxide levels in the atmosphere means...?
A
Decreased carbon dioxide levels in the ocean
B
Carbon dioxide levels will not change in the ocean
C
The ocean will have a lower temperature
D
Increased carbon dioxide levels in the ocean
10) How much of our atmosphere is nitrogen gas?
A
20%
B
58%
C
70%
D
78%
11) True or False: Scientists estimate that human activities such as manufacturing and applying fertilizers to crops have doubled the amount of nitrogen cycling through ecosystems.
A
False
B
True
12) The development of desert like conditions due to human activities and/or climate change is known as?
A
Reforestation
B
None of the above
C
Desertificiation
D
Deforestation
13) What is NOT an effect of mining?
A
Cleaner land
B
Changes the landscape
C
Polluted water
D
Disturbs habitats
14) The portion of precipitation that moves over land and eventually reaches streams, rivers, lakes and oceans is known as?
A
Agriculture
B
Water cycle
C
Runoff
D
Mining
15) The development of land for houses and other buildings near a city is called?
A
Urban sprawl
B
Desertification
C
Deforestation
D
Reforestation
16) Which is NOT an impact of urban sprawl?
A
Loss of Farmland
B
Increased runoff
C
Decrease of pollutants
D
Habitat destruction
17) Urban sprawl occurred at the same time of what trend?
A
Decreased motor vehicle use
B
None of the above
C
Increased motor vehicle use
18) How much of the total trash in the US ends up in a landfill?
A
31%
B
14%
C
55%
D
65%
19) True or False: Trash containing hazardous waste can be thrown in a landfill because it does not affect the health of humans or other living things.
A
True
B
False
20) Examples of hazardous waste include all except?
A
Batteries
B
Used motor oil
C
Medical waste
D
All of the above are considered hazardous waste.
*select an answer for all questions
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