When an unfortunate bug splatters on the windshield of a moving car, which quantity experiences the same change?
A. acceleration.
B. speed.
C. both of these
D. none of the above
Answer: D
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Because root systems at different depths in a given area of soil capture nutrients and soil efficiently we can say that
a. polyculture lessens the need for fertilizer b. polyculture lessens the need for fertilizer and water c. polyculture increases the need for fertilizer but not water d. polyculture increases the need for water but not fertilizer e. polyculture lessens the need for pollinators
One micrometre is equal to which of the following units of length?
A. one millionth of a metre B. one thousandth of a metre C. one hundredth of a metre D. one tenth of a millimetre
When do tidal currents reach their maximum velocity?
a. Midway between slack water and high tide b. Midway between low tide and slack water c. Midway between high and low tide d. During the flood current e. During the ebb curr
Icebergs are created _____
a. by freezing of sea water b. only when a glacier is retreating c. by plucking d. by calving e. by abrasion