"Environment
is surrounding atmosphere/ condition for existence" - "Environment is
an essential natural process or an outcome of occurrence" –
"Environment is of  two types, one is negative and the other is
positive"

Environment is generator: creation of life form is because of environment. Sun/moon, sea/ earth, hot/ cold and forests/ desert etc; they together made an environment that is fit for our existence. There are two different environments one is positive and the other one is negative, life forms in both namely, pests, insects and others are cold blooded have different conditions which suits them to survive that may not be suitable to us, both have own identities. Most important factor is that negative positive factors have to join together to form an environment for example mother/ father for birth of a child, negative/ positive of energy for electricity. In the system of environment, both have integral role to play. Where negative dominates outlines its systems and where positive dominates forms its own.