What grade of metamorphism occurs at a depth of 1 km and a temperature of 75 degrees C?

A) low-grade metamorphism
B) lithification of sedimentary rocks
C) medium-grade metamorphism
D) not found on Earth


Answer: B

Environmental & Atmospheric Sciences

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When the rock above a fault plane moves down relative to the rock below, it is called:

a) reverse fault b) normal fault c) transform fault d) strike-slip fault e) none of these

Environmental & Atmospheric Sciences

Earthquakes are likely to occur ________

A) as a result of volcanic activity B) in areas far from tectonic plate boundaries C) at the boundaries of igneous and sedimentary rock D) along tectonic plate boundaries where there is movement E) where the mantle and the crust make contact

Environmental & Atmospheric Sciences

In square kilometers (square miles), which of the following is closest to the amount of land surface covered by Pleistocene ice?

A) 1 thousand (386) B) 50 thousand (19,300) C) 1 million (386,000) D) 50 million (19,300,000) E) 1 billion (386,000,000)

Environmental & Atmospheric Sciences

Water at 4°C sinks to the bottom of a pond because

A. like a rock, it is denser than surrounding water. B. it benefits fish and other life forms there. C. of the presence of microscopic ice crystals. D. it will not freeze there.

Environmental & Atmospheric Sciences