The answer is b it can’t pollute sound
Potential energy is stored. As an item sits and does not move, potential energy builds up until said item moves, then it uses kinetic energy
Answer:
The rows on the periodic table are called periods. All the elements in a period have valence electrons in the same shell. The number of valence electrons increases from left to right in the period. When the shell is full, a new row is started and the process repeats.
Explanation:
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A: mouth. Chemical digestion begins in the mouth when enzymes in saliva begin to break down carbohydrates. Most chemical changes in digestion occur in the small intestine. Large molecules of food are broken down into smaller molecules that can be absorbed by our cells.
A!
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