The environment means everything within our four sensory systems. Everything outside of earth that includes animals, plants, microorganisms, mineral deposits, and so on. The environment could also include space and time as well as inner space or infinite time and space. The environment cannot be changed but humans have the ability to affect the environment by their actions.

The natural environment or living world encompasses everything living and non living things occurring naturally, which means excluding in this case non-living. The word is most commonly used in a biological sense, or with reference to the Earth or its parts. It covers an enormous range of subject areas including ecosystems (how various organisms interact to survive), climate (the atmospheric condition throughout the earth), climate change, the quality and quantity of oxygen in the atmosphere, and so on. In a very broad sense it could also cover the Universe as a whole.

The term ” Wilderness” is often used in a biological sense, but is really a generic term. It is used to describe an entire area where no living creature can live except for a few insects and other non-organisms. The natural environment is usually rich in diverse life and the organisms that exist there are in their natural environments. The term ” Wilderness” has often been used as a designation for a place with severe environmental damage. The phrase is sometimes used to describe a large section of land in an arid or semi-arid area, or any place with severe damage or without any vegetation.