Electric current that regularly reverses direction is called:
A) Alternating current. B) Direct current.
C) Ellipsoidal current. D) Potential current.
A
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Texas declared its independence from Mexico in 1836. Why wasn't it annexed to the United States until 1845?
What will be an ideal response?
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A short method of writing a mathematical rule is a(n) _____.
a. symbol b. operation c. expression d. formula
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Forests are important because they are part of our _____
A) families B) neighborhoods C) ecosystem D) industries
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Engineers and architect include a listing of symbols used on drawings called?
A. Legend B. List C. Standard D. Index
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