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a process known as the
water vapor cools to condense. Condensation clouds collide, groeing larger, when they are too heavy to be suspended by
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health. People as many other living things need freshwater to survive.
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climate. Without oceans, Earth's climate would be too harsh to support life.
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Ocean zones are determined by the depth of the water. As depth increases, there
plankton takes it and produces food, which starts the food chain.
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