The image on the left is sleet.
DNA contains the directions for a cell to develop.
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I think the answer would be C because I don't think rocks and be recyled and due to the fact that they come out of caves or from places that use to have a cave or an Valcano.
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photosynthesis helps the plants grow and go through its growing process and the plants later give us oxygen which help us breath
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The metric system is an alternative system of measurement used in most countries, as well as in the United States. The metric system is based on joining one of a series of prefixes, including kilo-, hecto-, deka-, deci-, centi-, and milli-, with a base unit of measurement, such as meter, liter, or gram.