Question

what would happen if green plants dissapear from earth?

Answer 1

If all the green plants will disappear from earth then it will cause a decrease in the concentration of the oxygen to such a low level that it would not be sufficient for all the living organisms for breathing. Thus, it will result in their death.

Answer 2

Plant produce oxygen to us, So if plants disappear from earth all the living organism will starve and suffer without enough oxygen for breath (including habitat) which causes death. Also lack of nutrient and don't get food as we depend on plant for food.

Hope it helps you :)