Recently, geologists have been drilling through ice sheets for clues about

A. past climates
B. extinctions
C. ancient mammals
D. astronomical events


Answer: A

Environmental & Atmospheric Sciences

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Without gravity, a ball thrown at an upward angle would follow a straight-line path. Because of gravity, however, in 2 s it is below the straight line a distance of

A. 10 m. B. more than 20 m. C. 20 m. D. 15 m.

Environmental & Atmospheric Sciences

Felsic rocks are lighter in color than mafic rocks

a. True

b. False

Environmental & Atmospheric Sciences

Dung beetles feeding on the waste of cattle grazing on hay in a field represent

A) a detritus-feeding decomposer feeding on the wastes of a consumer eating a producer. B) a producer feeding on the wastes of a producer eating a consumer. C) a producer feeding on the wastes of a consumer eating a producer. D) a consumer feeding on the wastes of a decomposer eating a producer.

Environmental & Atmospheric Sciences

Which of the following could be the equilibrium constant for a reaction which proceeds very far in the direction of the products?

A) 1 x 10^-15 B) 1 x 10^- 2 C) 1 x 10^2 D) 1 x 10^15

Environmental & Atmospheric Sciences