Answer:
Chemical change is a change in which there is rearrangement of atoms and thus new substance is formed. There may or may not be a change in physical state.
Photosynthesis is a phenomenon in which green plants containing chlorophyll use sunlight as a source of energy to convert carbon dioxide and water to form glucose and oxygen. The energy from light causes a chemical reaction that breaks down the molecules of carbon dioxide and water and reorganizes them to make the sugar and oxygen gas.
Answer:
coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups.
Explanation:
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The answer is C cardiopulmonary resuscitation.
Yes, Granite forms crystals
DNA<span> is a double helix, while RNA is a single helix. Both have sets of nucleotides that contain genetic information. Credit: udaix Shutterstock. Deoxyribonucleic acid or</span>DNA<span> is a molecule that contains the instructions an organism needs to develop, live and reproduce.</span>
