The word ‘environment’ is derived from the old French word ‘environer’ – which means to ‘surround, enclose, and encircle’. Environment refers to an aggregate of conditions or surroundings in which living beings such as humans, animals, and plants live or survive and non-living things exist.

All living beings including man and their environment are mutually reactive, affecting each other in a number of ways. It is generally equated with nature wherein physical components of the planet earth such as earth, air, water, etc. support and affect life in the biosphere.

Ref : https://www.youtube.com/watch?v=5NNw0GSUR-c