Which igneous rocks are typically the lightest in color?

A) ultramafic
B) felsic
C) intermediate
D) mafic


Answer: B

Environmental & Atmospheric Sciences

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In the interior of continents the earth's crust is typically about 40 km thick and the elevation is near sea level. In the Himalayas the crust is more than 60km thick

Isostasy says crust thicker than this average should produce elevated terrain (mountains), so why isn't the elevation of the Himalayas 20km?

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Unrest in Africa was illustrated by violence in ________ after the election of National Alliance of Rainbow Coalition in 2002

A) Uganda B) Somalia C) Kenya D) Tanzania

Environmental & Atmospheric Sciences

The Russian region has a long history of geopolitical concerns, including resources and trade routes from the Silk Road to the Suez Canal

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Increasing levels of greenhouse gases plays a major role in the warming of the lower atmosphere

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences