The gulf stream moves heat towards the countries in the north atlantic ocean. how does this influence the climate in coastal regions of these countries? it causes drought. it prevents tornadoes. it reduces the amount of rainfall. it makes the weather warmer than expected.

I believe it's "it makes the weather warmer than expected".

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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.