What is a system?
a system is something that exists on its own, does not need support, and it is natural. The animals there exist on their own and they do not need any help from the outside.
How humans and the environment are dependent on each other?
The humans are polluting the environment and we are killing the living things in the environment. At the same time, however, the humans are also protecting the environment by making nature reserves, and trying to preserve the species that are dying out and to help them survive