Answer:
1.Without the Sun's rays, all photosynthesis on
earth would stop. All plants would die and, eventually, all animals that rely on plants for food — including humans — would die, too.
2.Plants supply food to nearly all terrestrial organisms. Plants maintain the atmosphere. They produce oxygen and absorb carbon dioxide during photosynthesis. Oxygen is essential for cellular respiration for all aerobic organisms.
Explanation:
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