At what depth does a wave touch the ocean floor when it reaches the shore? where the depth of water is about the wavelength.

a: one half

b: two times

c: one quarter

d: three quarters

answer: all : )

explanation:

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.