What gas is released by plants and needed by animals?
A. Carbon
B. nitrogen
C. oxygen
D. phosphorus
What process is involved in the production of sugar and oxygen?
A. photosynthesis
B. condensation
C. reproduction
D. evaporation
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What gas is released by plants and needed by animals?
A. Carbon
B. nitrogen
C. oxygen
D. phosphorus
What process is involved in the production of sugar and oxygen?
A. photosynthesis
B. condensation
C. reproduction
D. evaporation
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✧Answer:
What gas is released by plants and needed by animals?
-C. oxygen
What process is involved in the production of sugar and oxygen?
-A. photosynthesis
✧Explanation:
-Oxygen is continuously replenished in Earth's atmosphere by photosynthesis, which uses the energy of sunlight to produce oxygen from water and carbon dioxide.
-Oxygen is too chemically reactive to remain a free element in air without being continuously replenished by the photosynthetic action of living organisms.
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