Positive drives:

A. Must maintain maximum arc of contact. B. Have toothed sprockets and do not slip. C. Require high tension levels.
D. All of the above answers are correct.


B

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

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The time frame during which domestication of plants occurred was toward the end of the Ice Age

Indicate whether the statement is true or false

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"Crossing the chasm" refers to bridging the gap between ________ and ________.

A. New businesses; Venture capitalists B. Visionaries; Pragmatists C. Enthusiasts; Rapid adopters D. Analysts; Conformists

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Monensin, an antibiotic that often enhances weigh gain in cattle, is deadly when

consumed by horses. A. True B. False

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