What is the term used to describe the area where thin oceanic plates spread apart, releasing magma and creating new oceanic crust?

it has one origin of replication, but it proceeds in two directions - d)

i am going to guess that it is co2.

the animal that would be cutest if scaled down to the size of a cat? elephant

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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.