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Because most air pollution is caused by the burning of fossil fuels burned in the home
Deforestation is a bad thing because it takes away homes from animals. It also ruins the earth. Trees and plants are important to the earth and we need them. They are used for food. Not only for us but for animals. They keep the air clean.
The cycle that is described in the problem is called the water cycle. in this cycle, the water from a lake is evaporated through the heat of the sun and the water is accumulated in the clouds. When the clouds are saturated, then water condenses and precipitates to fall as rain.
cholesterol in the cell membrane is to maintain stability, anchor other molecules, and keep the membrane fluid in cold temperatures.
The cells would be dividing all the time. Hope this helps
