Question

State the number of processes that remove carbon dioxide from the air

Answer 1

Photosynthesis, oceanic absorption, geological storage, and technological solutions like direct air capture and carbon capture are main processes that remove CO₂ from the atmosphere.

Step-by-step explanation:

The main processes that remove carbon dioxide from the atmosphere include photosynthesis, where trees and plants absorb CO₂ and convert it into organic matter, the dissolution of CO₂ in oceans forming carbonate and bicarbonate, the formation of long-term geological carbon stores through processes like sedimentation, and new technologies such as direct air capture and carbon capture at point sources such as smokestacks. Photosynthesis is a particularly critical process, as it not only removes CO₂ but also produces oxygen, which is essential for life on Earth. However, deforestation significantly impairs this natural ability to sequester carbon. The adoption of various anti-pollution policies has also contributed to a significant reduction in carbon emissions, as shown by the decline of emissions in the United States from 2007 to 2012 by 740 million metric tons or a 12% reduction.

Answer 2

Water and carbon dioxide are byproducts. Notice that photosynthesis and respiration are essentially the opposite of one another. Photosynthesis removes CO2 from the atmosphere and replaces it with O2. Respiration takes O2 from the atmosphere and replaces it with CO2.