A ________ is a solid, naturally occurring, cohesive substance composed of minerals or mineral-like materials

A) tetrahedron
B) mineral
C) rock
D) mixture


Answer: C

Environmental & Atmospheric Sciences

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A glacial valley drowned by rising sea level is

A. a tombolo B. a headland C. a fiord D. an estuary

Environmental & Atmospheric Sciences

Most of the compaction during subsidence due to fluid withdrawal takes place in:

a. permeable sandstone strata b. sand and gravel beds c. in silt and clay beds of low permeability d. limestone strata

Environmental & Atmospheric Sciences

On Mohs' scale of hardness your fingernail has a value of ________.

A. 5 B. 2½ C. 9 D. 6½ E. 12

Environmental & Atmospheric Sciences

________________ added to the atmosphere since 1750 is the largest contributor to change in radiative forcing

Fill in the blank with correct word.

Environmental & Atmospheric Sciences