Which of the following is not a major controlling factor on volcanic eruption style?





A) Age of volcano

B) Chemistry of the magma

C) Magma volatile content


A) Age of volcano

Environmental & Atmospheric Sciences

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Which of the following is an accurate statement about the frictional force?

A. It accelerates winds near the surface. B. It is zero at the equator. C. It varies depending on the nature of the Earth's surface. D. It is roughly the same up to an altitude of 5 km.

Environmental & Atmospheric Sciences

This cloud sometimes resembles mare's tails

A) cirrus B) altostratus C) nimbostratus D) cumulonimbus E) cirrostratus

Environmental & Atmospheric Sciences

How much of the Earth's atmosphere lies below 32 km altitude?

A. 89 percent B. 99 percent C. 59 percent

Environmental & Atmospheric Sciences

Which of the following types of soil is least strongly influenced by its climate?

A. entisol B. mollisol C. spodosol D. aridisol

Environmental & Atmospheric Sciences