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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 reflected by land or water
B
It is blocked by greenhouse gases
C
It is blocked by the ozone layer
D
It is absorbed, reflected or scattered by the atmosphere
2) What does all the water on Earth form?
A
The hydrosphere
B
The biosphere
C
The atmosphere
D
The geosphere
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
0 - 4 percent
B
21 percent
C
78 percent
D
0.03 percent
5) Which atmospheric gas varies from 0 to 4 percent?
A
Carbon dioxide
B
Oxygen
C
Nitrogen
D
Water vapor
6) Which greenhouse gas is not a normal part of the atmosphere?
A
Methane
B
Ozone
C
CFC's
D
Nitrous oxides
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
Methane
B
Nitrous Oxides
C
Ozone
D
Carbon dioxide
9) Which human activity contributes most to increasing carbon dioxide levels?
A
Respiration
B
Agriculture
C
Burning fossil fuels
D
Biochemical reactions in stomachs
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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