The answer is A.1 items that are being tested are the independent variables and that they cause the dependent variables to change
When sulfurous, sulfuric, and nitric acids in polluted air and rain react with the calcite in marble and limestone, the calcite dissolves. In exposed areas of statues, we see roughened surfaces, removal of material, and loss of carved details
Enzymes are a very important part of the body. They are the very reason a human can digest food. The enzymes act as a catalyst to speed up a persons metabolism.
Answer:
during the process of photosynthesis, cells use carbon dioxide and energy from the sun to make sugar moleculezs and oxygen..... then, via respiration processes, cells use oxygen and glucose to synthesize energy- rich carier molecules such as ATP, and carbon dioxide is produced as a waste product.
Explanation:
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