Question

what is balance in nature

Answer 1

The Environmental Ecosystem Balances the nature.!!!
The % Air
The Temperature...etc

Answer 2

The balance of nature is a theory that proposes that ecological systems are usually in a stable equilibrium or homeostasis, which is to say that a small change in some particular parameter (the size of a particular population, for example) will be corrected by some negative feedback that will bring the parameter back to its original "point of balance" with the rest of the system.