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ES Atmosphere 2
Test Description: Energy transfer in the atmosphere, greenhouse gases, human impact on gas levels.
Instructions: Answer all questions to get your test result.
1) What prevents much of the Sun's energy from reaching Earth's surface?
A
It is absorbed, reflected or scattered by the atmosphere
B
It is reflected by land or water
C
It is blocked by the ozone layer
D
It is blocked by greenhouse gases
2) What does all the water on Earth form?
A
The atmosphere
B
The geosphere
C
The hydrosphere
D
The biosphere
3) What do we call the mixture of gases that surrounds the planet?
A
The biosphere
B
The geosphere
C
The atmosphere
D
The hydrosphere
4) What percentage of clean dry air is carbon dioxide?
A
21 percent
B
0 - 4 percent
C
0.03 percent
D
78 percent
5) Which atmospheric gas varies from 0 to 4 percent?
A
Water vapor
B
Nitrogen
C
Oxygen
D
Carbon dioxide
6) Which greenhouse gas is not a normal part of the atmosphere?
A
Nitrous oxides
B
CFC's
C
Ozone
D
Methane
7) Which greenhouse gas is produced naturally by respiraton and volcanic outgassing?
A
Methane
B
Carbon dioxide
C
Ozone
D
Nitrous oxides
8) Which greenhouse gas is naturally produced by atmospheric processes?
A
Methane
B
Carbon dioxide
C
Nitrous Oxides
D
Ozone
9) Which human activity contributes most to increasing carbon dioxide levels?
A
Biochemical reactions in stomachs
B
Respiration
C
Burning fossil fuels
D
Agriculture
10) How have humans affected the level of CFC's?
A
The contribute 100 percent of CFC's
B
The contribute 50 percent of CFC's
C
They contribute 2 percent of CFC's
D
They contribute 85 percent of CFC's
*select an answer for all questions
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