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Biology, 21.06.2019 23:00
Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?
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Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above
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Biology, 22.06.2019 20:30
Name 3 injuries and two diseases that affect the skeletal system.
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Physical changes produce new substances. true or false?...
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