True. The sensation of a frequency is commonly referred to as the pitch of a sound. A high pitch sound corresponds to a high frequency sound wave and a low pitch sound corresponds to a low frequency sound wave. ... Such sound waves form the basis of intervals in music.
The definition of strategy is a careful plan or method for achieving a certain goal.
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The answer is letter d, the authority gives a state the right to use its power. It is because this can explain the relationship of power and authority where in it happens in today's modern world of which an individual can use their power when they have the authority or right to do so
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The fertility rate measures the number of births per 1,000 women of childbearing age (ages 15 to 44) occurring in a particular year; birth rates refer to this measure within particular age groups.
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