4. Read the following sentences: "When the biodiversity of a region declines, many of the organisms critical to this filtering process can disappear. Therefore, pressures on
the freshwater supply can cause biodiversity to decrease, which can cut the drinkable
water supply even further."
Based on this information, what can be concluded?

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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.

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

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