Erosion is mainly caused by water, wind, and gravity.
Answer:
B
Explanation:
i just did it on study island
Answer:
A.
Explanation:
momentum depends on weight and speed
If the frequency of an electromagnetic wave is too high or too low : C. It is no longer an electromagnetic wave
If the frequency is too high or too low, the skin depth pf the electromagnetic wave will not be comparable to the plasma length
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