The two fundamental characteristics that distinguish a mineral from all other minerals are its

A. density and streak.
B. chemical composition and crystal structure.
C. color and hardness.
D. hardness and cleavage.


Answer: B

Environmental & Atmospheric Sciences

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Secondary pollutants are

A. chemicals or substances emitted directly into the air. B. those formed from reactions with other pollutants in the atmosphere. C. found only in stratospheric ozone D. also known as natural pollutants. E. found only in fossil fuels.

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What drives deep ocean currents?

a. the rotation of the Earth b. the Earth's magnetic field c. wind d. waves e. density

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How does a glaciated mountain valley differ in appearance from a mountain valley that was not glaciated?

What will be an ideal response?

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0.117 mol of a particular substance weighs 21.9 g. What is the molar mass of this substance?

A) 187 g B) 187 amu C) 0.00534 g D) 0.00534 amu

Environmental & Atmospheric Sciences