• Brainly User
As life on Earth predates the evolution of photosynthesis, and lots of organisms still live independently of any need for sunlight, life is possible on the planet without it
The Brainliest Answer!
Photosynthesis is important for the existence of life on this earth . In the absence of photosynthesis , would not be possible on earth . This is due to the following reasons.
i) Photosynthesis by plants provides food to animals (including human being ) . So , the survival of animals including human beings depend on the food made by plants by photosynthesis . In the absence of photosynthesis , there would be no plants on the earth and hence no animals will survive.
ii) The process of photosynthesis by plants put oxygen gas into the air . It is this oxygen gas which the animals use for breathing and respiration. 

So, due to this all reasons life is impossible on the earth in the absence of photosynthesis.
4 4 4