题目内容

The driven forces for the formation of metamorphic rocks are:

A. Gravity
B. Heat
C. Pressure

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Which zone is marked by a sharp increase in density below the asthenosphere?

A. Lower Mantle
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C. Lithosphere
D. Transition zone

The water portion on our planet Earth belongs to:

A. geosphere
B. hydrosphere
C. biosphere
D. atmosphere

Natural resources addressed by geology include:

A. water
B. Soil
C. metallic and non-metallic minerals
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Which one of the following is to seeks an understanding of the origin of Earth and its development through time?

A. Physical geology
B. Historical geology