Question

On an annual basis, what is the net result of the contributions/removals of CO2 from the atmosphere due to global photosynthesis and respiration (both terrestrial and marine)?

Answer 1

3gt/year.

Step-by-step explanation:

The carbon dioxide is released into the atmosphere by respiration of animals. The burning of fossil fuels, erosion also increases the amount of carbon dioxide in the atmosphere.

The terrestrial and aquatic life release a large amount of carbon dioxide in the atmosphere. Annually, around 3 gt amount of carbon dioxide has been released in the atmosphere.