What would happen if green plants disappear from the earth?
Green plants are predominant autotrophs that provide food for all the heterotrophs on this planet. These organisms occupy the first trophic level in the food chain and serve as a source of food and energy for all other organisms of higher trophic levels (heterotrophs). They also balance the carbon dioxide and oxygen levels in the atmosphere so if green plants disappear then the life on this planet will cease to exist.