Flood basalt eruptions are fed by

A) long fissures/dikes.
B) lava tubes.
C) central vents/craters.


A) long fissures/dikes.

Environmental & Atmospheric Sciences

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A graphic device that displays the population by age and sex groups is called a _________________.

Fill in the blank(s) with the appropriate word(s).

Environmental & Atmospheric Sciences

Ozone is a greenhouse gas that ____ role in the enhancement of the greenhouse effect

A) plays a minor B) plays a major C) plays the most important D) has no

Environmental & Atmospheric Sciences

Coastal waters often support larger blooms of plankton than open water due to a high nitrate level in

runoff. Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences

Which element accounts for nearly half the mass of the earth's crust?

A) carbon B) iron C) oxygen D) silicon

Environmental & Atmospheric Sciences