C. Exponential growth occurs when there is unlimited resources. Since there is a surplus of food, there are a lot more babies are born because of the favorable circumstances.
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The various types of cells making up the structural composition of your body (skin cells, muscle cells, cells of your stomach lining, etc.) are all Epithelial cells. The only other class of cells in your body are Gametes (sperm and egg cells).
Crude oil: Through drilling wells
Coal: Through surface and underground mining
Natural gas: Through hydraulic fracturing
The temperature of the crust is much cooler than the interior.
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