Question

Alongwith the natural resources available on the earth, what else is required to meet the basic requirement of all life forms on the earth ?

Answer 1

Solar energy.

1. Along with these things there should be a good environment around us where there is a good supply of oxygen as it is a life-supporting gas.
2. And there should be a natural balance between all plants and animals that is you can say the food chain among them and so the ecosystem should be good at all successive levels.