Read Changes on Earth and Changes in Life. Explain how changes in Earth's systems affect the growth of life on Earth. Use evidence from the text to support your answer.
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Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.

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What natural processes produce large quantities of co2