Which abiotic factor is essential to all aquatic ecosystems except ocean hydrothermal vents, and why? a. phytoplankton, because it provides a source of minerals b. salt, because it provides a source of materials c. deep water, because it provides the necessary environment for organisms to move about d. sunlight, because it provides a source of energy
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Identify characteristics of energy from the sun. check all that apply. almost all of the energy on earth comes from the sun. energy from the sun is known as mechanical energy. the energy in fossil fuels originally came from the sun. plants convert the energy of sunlight into chemical energy.
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Recommend a strategy for incorporating sustainable human activity into a tropical rain forest biome.
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