Which of the following would most likely result in a lava flow that is hazardous to humans?

A. low viscosity andesitic magma
B. low viscosity basaltic magma
C. high viscosity basaltic magma
D. high viscosity rhyolitic magma
E. high viscosity andesitic magma


Answer: B

Environmental & Atmospheric Sciences

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Precipitation occurs because air is warmed adiabatically as it rises

Indicate whether the statement is true or false.

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During its initial formation by the accretion of particles, the young Earth was ____

A) shrouded in a thick atmosphere B) density stratified with a core, mantle, and crust C) likely chemically homogenous throughout D) completely covered by an ocean

Environmental & Atmospheric Sciences

Materials transported directly by glaciers tend to be unsorted when deposited, but those carried by meltwater are sorted

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Wind belts that blow from east to west over most of the areas between 30°N and 30°S are called ________.

A. trade winds B. doldrums C. horse latitudes D. westerlies E. polar easterlies

Environmental & Atmospheric Sciences