The burning of coal and oil for energy affects the carbon cycle in which way?
a. it increases the amount of carbon in existence.
b. it decreases the amount of carbon in existence.
c. it increases the amount of atmospheric carbon.
d. it does not affect the carbon cycle.

organisms that are both used in toothpaste as well as cause malaria are protista and monera.

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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.