Which of the following processes removes carbon (IV) oxide from the atmosphere?

Goody0708

3 months ago

Photosynthesis is the primary natural mechanism for removing CO₂ from the air. In this process:
Input: Green plants, algae, and some bacteria absorb CO₂ and water from their environment.
Mechanism: Using sunlight trapped by chlorophyll, they convert these inorganic molecules into energy-rich organic compounds like glucose (sugar).
Output: Oxygen (O₂) is released back into the atmosphere as a byproduct.
Why it is NOT respiration in plants
Respiration is effectively the opposite of photosynthesis regarding gas exchange:
CO₂ Release: During respiration, plants break down glucose to produce energy for growth and survival. This chemical reaction releases CO₂ back into the atmosphere rather than removing it.
Oxygen Consumption: Unlike photosynthesis, respiration requires plants to take in oxygen to "burn" their stored food.
Continuous Process: While photosynthesis only occurs during the day (in the presence of light), respiration occurs continuously (both day and night).
Note on Net Effect: Although plants respire and release CO₂, they typically absorb much more CO₂ during the day through photosynthesis than they release through respiration, making them a net carbon sink.