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Ch.16 How Humans Impact Ecosystems.
Test Description: CH.16
Instructions: Answer all questions to get your test result.
1) Why has earths human capacity increased greatly?
A
Humans are now eating fewer plants than they used to.
B
Other organisms have been displaced by agriculture.
C
Humans can live closer together than other animals.
D
Humans have modified their environment due to technological advances.
2) WHy is oil considered a nonrenewable resource?
A
it forms faster than it is used.
B
it can be recycle.
C
It is used faster than it forms
D
it cannot be used up
3) Which of the following is not a renewable resource?
A
wind energy
B
coal
C
drinking water
D
solar energy
4) What terms describes the use of resource in such a way that they will be available for future generations?
A
renewable
B
Unstainable
C
nonrenewable
D
sustainability
5) What factors does not determine the size of an individuals ecological footprint?
A
toxicity of waste produced.
B
amount and efficiency of resource use.
C
amount of waste produced
D
size of population
6) What causes smog?
A
the interaction of sunlight with pollutants produced by burning fossil fuels.
B
the formation of the ozone
C
acid rain
D
the burning of particulates
7) Which of the following is a component of smog?
A
acid rain
B
upper atmosphere ozone
C
greenhouse gases
D
ground level ozone
8) How do green house gases support life on earth?
A
The pass the energy from the sunlight to chlorophyl for use in photosynthesis.
B
They absorb ultraviolet radiation, which keeps earth surface warm.
C
The absorb infrared radiation which keeps earth surface warm.
D
The form carbon dioxide which is absorbed by fossil fuels.
9) What is global warming?
A
the trend of increasing temperatures on earth.
B
the melting of the polar ice caps.
C
the normal temperature of the earths climate.
D
the changes in earths biospheres that affect the atmosphere
10) What may happen when a lake ecosystem becomes polluted with fertilizers?
A
increase in dissolved oxygen
B
Eutrophication ( when green slime covers the top of lakes and ponds)
C
increase in carrying capacity of the ecosystems.
D
increased rate of decomposition by divers
*select an answer for all questions
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