The degree to which detrital particles have had their sharp edges and corners smoothed off byabrasion:a

varve d. sorting
b. cross-bedding e. rounding
c. drift


E

Environmental & Atmospheric Sciences

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Which of the following is the most abundant greenhouse gas in the Earth's atmosphere?

A. water vapour B. nitrous oxide C. carbon dioxide D. methane

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The resonant rocking of water is known as a(n) ____________. Fill in the blank(s) with the appropriate word(s)

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The ________ is based upon the observation that fossil species succeed one another through layers in a predictable order.

A. principle of faunal succession B. principle of original horizontality C. principle of unconformities D. principle of lateral continuity E. principle of radioactivity

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The precipitation of calcium carbonate around shell fragments can form ____________ because they resemble fish

eggs. Fill in the blank(s) with the appropriate word(s).

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