Will give brainiest
question 24 of 25
2 points
which human activity has the most negative effect on the stability of a river
environment?
o
a. driving a car near the river
o
b. boats leaking oil into the river
o
c. sailboats being stored in the river
o
d. people picnicking along the bank of the river

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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.

what? are the statements?