ECOLOGY
CHEMICAL CYCLES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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combustion; weathering; erosion.
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nitrogen-fixing; denitrification; ammonification.
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photosynthesis; cellular respiration; combustion of fossil fuels.
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chemical precipitation; leaching; geological uplifting.
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Detailed explanation-1: -Respiration, excretion, and decomposition release the carbon back into the atmosphere or soil, continuing the cycle.
Detailed explanation-2: -Stage-1: All green plants during the process of photosynthesis, release oxygen back into the atmosphere as a by-product. Stage-2: All aerobic organisms use free oxygen for respiration. Stage-3: Animals exhale Carbon dioxide back into the atmosphere which is again used by the plants during photosynthesis.
Detailed explanation-3: -During the carbon cycle, animals and plants add carbon dioxide to the atmosphere through cellular respiration, and plants remove carbon dioxide through photosynthesis. The burning of fossil fuels releases more carbon dioxide into the atmosphere, contributing to global warming.
Detailed explanation-4: -When they’re exposed to light, green plants use carbon dioxide from the atmosphere to manufacture living matter and release oxygen into the air. This process is called photosynthesis. Carbon dioxide is produced through the respiration of animals and plants, which consume oxygen and release carbon dioxide.