The energy content of food is described in terms of calories because the energy in food ultimately becomes heat.
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It is about 78%, I hope that this helped :)
D surface tension because, adhesion is sticking, b makes no sense for this question, and heat has nothing to do with it either, because it distributes it's weight throughout its legs so it doesn't sink (it doesn't weigh much so this works.)
Hope this helps don't forget to hit that heart :)
So it could fit perfectly.
Choose the answer half-life, im sure it is correct
