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Ecosystems exist at the bottom of the ocean using _________ as their means for energy. a) chemicals b)light c) oxygen d) pressure
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Ecosystems exist at the bottom of the ocean using _________ as their means for energy. a) chemicals b)light c) oxygen d) pressure

User Kylemart
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They depend on sunlight for energy. At the deeper levels that sunlight can’t reach, they will depend on chemicals.
User Wyxa
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