Human activities in the united states such as burning fossil fuels for electricity, heat, and certain transportation.
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Answer:
Autotrophs store chemical energy in carbohydrate food molecules they build themselves. Food is chemical energy stored in organic molecules. Food provides both the energy to do work and the carbon to build bodies. Because most autotrophs transform sunlight to make food, we call the process they use photosynthesis.
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Formula to create heat of fusion (hof) i q=m•/\Hf
to get the amount of heat energy you need to
however much you have gxj/g
find J
