Peralta Community College District
Physical Geography
Rita D. Haberlin, Instructor

Solar Radiation Quiz

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Important:   When you answer a question, a response box will appear.   You must close this response box before continuing the quiz.
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1. What is the source of the sun's energy?

The fusion of helium into hydrogen
The fusion of uranium
The fusion of hydrogen into helium
The fission of uranium
2. Solar energy is transferred to the earth's surface by:
Shortwave radiation
Convection
Longwave radiation
Conduction
3. What is insolation?
Incoming Solar Radiation
Energy radiated from the earth
Wind speed
Made mostly of asbestos
4. As a global average, what percentage of the solar radiation reaching the top of the atmosphere is reflected back to space?
10%
20%
30%
40%
50%
5. Which one of the following surfaces reflects the most solar radiation?
Forests
Sand
Ocean surfaces
Fresh snow
Dark, moist soil
6. Atmospheric gases such as carbon dioxide and water vapor, absorb and reradiate longwave radiation from the earth.  This process is called:
The coriolis effect
The greenhouse effect
The thermal effect
The scattering effect
7. The most important process in heating the atmosphere is:
Heat release from volcanoes
Absorption of shortwave solar radiation
Absorption of longwave earth radiation
Reflection off the surface of the earth
8. Which is NOT one of the ways in which the atmosphere is heated?
Reflection off the surface of the earth
Conduction
Longwave radiation from the earth
Convection
9. On average, how much of the sun's radiation is absorbed by the earth's surface?
30%
50%
70%
85%
10. Comparing earth radiation with solar radiation, solar radiation is:
Cooler
Less harmful
Longer wavelength
Shorter wavelength

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