That is a chemical change or reaction.
Answer: C. there is more silicon than calcium at the surface of the earth
Explanation:
Answer:
Protein
Explanation:
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Digestion begins in the mouth with chewing and ends in the small intestine. As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules. ...Digestive juices contain enzymes that break food down into different nutrients.
Answer: no they don’t they only have one
Explanation:
