Volcanic mudflows (lahars) are common on composite volcanoes because
A. such volcanoes form preferentially in rainy tropical locations.
B. large amounts of rain and snowmelt mix with loose ash on steep slopes.
C. hot mud commonly erupts from their central craters.
Answer: B
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Green roofs could be used in office buildings to conserve heat in winter and cooling in the summer.
Answer the following statement true (T) or false (F)
Why is sedimentary rock found in basins?
A) The whole Earth is a basin. B) Volcanoes eject sedimentary materials into basins. C) Clastic sediment erodes from high-standing areas and is transported primarily by water to be deposited in low areas. D) Plate boundaries grind together at basins to form sediment.
Discuss and analyze the reasons for the demographic collapse of the indigenous population of Latin America.
As Apollo 12 ascended into the atmosphere, the height of the surrounding clouds was 12,800 m. Which of the following types of clouds was indicated by a lightning stroke within the surrounding clouds?
A. cumulonimbus B. cumulus congestus C. cirrus D. cirrocumulus