An atom that loses a negatively-charged electron becomes a(n) _____.

a. proton
b. electron
c. nucleus
d. positive ion


d. positive ion

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____________________ trees are natural sun blockers.

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

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Chromium carbides form when the metal is between ____ Fahrenheit.

A. 200° and 500º B. 500° and 800º C. 800° and 1500° D. 1500° and 2000°

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With its leads on either side of a switch, a voltmeter reads 120 V. This indicates that:

A) The switch is open, so voltage cannot pass through. B) The switch is closed, allowing 120 V to pass through. C) The switch is closed, so voltage cannot pass through. D) The switch is open, allowing 120 V to pass through.

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When readings are taken from the face of the coupling flange with a dial indicator, the alignment is referred to as a(n) ____ alignment.

A. angular B. face C. rim D. dial indicator

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