Answer:
The four main classes of organic compounds (carbohydrates, lipids, proteins, and nucleic acids) that are essential to the proper functioning of all living things are known as polymers or macromolecules. All of these compounds are built primarily of carbon, hydrogen, and oxygen but in different ratios.
Explanation:
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There are 4 significant figures
It is 19.3g/cm^3. To find density, you divide mass by volume, or d=m/v
Answer:
Gravity.
Explanation:
Gravity is what causes stuff to fall. It also keeps us on the ground, If there were no gravity, life wouldn’t exist as we know it today. Brainliest please! I need brainlest in order to keep answering questions!!
Answer: Photosynthesis removes carbon dioxide from the atmosphere and releases oxygen, Respiration takes oxygen in and releases carbon dioxide, decomposition releases carbon dioxide back into the air from dead animals or waste, Burning is the same
Explanation:
