NEET BIOLOGY

Detailed explanation-1: -Land, water, air, plants and animals comprise the natural environment.

Detailed explanation-2: -An ecosystem (also called as environment) is a natural unit consisting of all plants, animals and micro-organisms (biotic factors) in an area functioning together with all of the non-living physical (abiotic) factors of the environment.

Detailed explanation-3: -A natural environment is a type of an environment where human impact or interaction has been extremely limited. A natural environment encompasses all living and non-living things occurring naturally, meaning in this case not artificial. The term is most often applied to the Earth or some parts of Earth.

Detailed explanation-4: -The natural environment gives us a wealth of services that are difficult to measure in dollars. Natural areas help clean our air, purify our water, produce food and medicines, reduce chemical and noise pollution, slow floodwaters, and cool our streets. We call this work ‘ecosystem services’.