What role do producers play in establishing earth as a living planet

Producers are the group of organisms which are capable of using energy from the sun to produce their own food. All the other living organisms depend on the food produce by producers to survive. Both animals and humans feed on the plants and humans also eat animals which feed on plants. 
Without producers, there will not be any food in the world for other living organism to eat and survive.

light dependent reactions:

release oxygen during the photolysis of wateroccur in the granaproduce atp

light independent reactions:

fix carbon dioxide occur in the stromaproduce glucose

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