Answer:
It is present in the air mostly in the form of carbon dioxide
Step-by-step explanation:
- Every living being is breathing and expelling the carbon dioxide in the air thorugh the process of repsiration .
- In air carbon dioxide is about 0.0391 percent .
- Every year this percentage increase
- This carbon dioxide is a source of food for plants .
- They use it in the process called photosynthesis
- Other form in which carbon dioxide is present in air is methane