Answer:
The <u><em>absolute value </em></u>of an integer is the <u><em>distance</em></u> that number is from <u><em>zero</em></u> on a number line. (# of steps from zero)
B. Weakened
Overtiredness has a negative effect on driving capabilities.
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Nomads became villagers and that led to cities and civilizations
C. Using italics
Explanation:
Italics are used to emphasize a word or phrase.
PH is the independent variable and the growth of oysters is the dependent variable