Dumping radioactive waste in a lake is an example of Question 18 options:

point source pollution

polluting

non point source pollution

immediate polltuion

What did Lee do first to get McClellan’s army to move away from Richmond?

Explanation:

What did Lee do first to get McClellan’s army to move away from Richmond?

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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.