How do volcanoes factor in to climate change? *
2 points
A .Ash coats the earth surface, trapping heat and heating up the earth itself
B. Volcanoes release hot air into the atmosphere, contributing to global warming.
C. Lava from volcanoes heats up the air in the atmosphere, contributing to global warming.
D. Ash aerosols in the atmosphere reflect sunlight, which can cause global cooling that can last for years.
15. A thick layer of volcanic ash can be heavy enough to collapse the roofs of buildings because ash ________. *
2 points
A. is solid.
B. cannot be blown by winds.
C. becomes heavier as it cools.
D. Ash aerosols in the atmosphere reflect sunlight, which can cause global cooling that can last for years.
This is a required question
16. How does the amount of gas dissolved in magma affect its viscosity? *
2 points
A. more gas dissolved, more viscous
B. more gas dissolved, less viscous
C. amount of gas dissolved does not affect viscosity
D. none of the above.
17. Where does the pressure that powers volcanic eruptions come from? *
2 points
A. sulfur
B. oxygen
C. steam
D. chlorine
18. Which type of energy do volcanoes possess? *
2 points
A. Mechanical energy
B. Geothermal energy
C. Electrical energy
D . Nuclear energy
This is a required question
19. Geothermal energy reservoirs are *
2 points
A. Liquid dominated reservoirs
B. Steam dominated reservoirs
C. Hot rocks with no water
D. All of the above
This is a required question
20. Which of the following BEST describes climate? *
2 points
A. The weather that occurs in the atmosphere within a day.
B. The pattern of weather that occurs in a region over a long period of time.
C. The pattern of weather that occurs in a region over a short period of time.
D. The disturbance in the atmosphere that happens in a long period of time.
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Answer:
14. C
15.C
16.D
17.C
18.B
19.D
20.B