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