All organisms including plants, animals and microorganisms and their physical surrounding with which they interact is called environment.
All biotic and abiotic components of the environment are dependent on each other for maintaining balance. Therefore, the different components of the environment are interlinked and interdependent. The environment varies from place to place due to variation in climate, soil-type and topography. All plants and animals adapted to the environment in which they are born and live.
A change in any component of environment may cause discomfort and affect normal life of living organisms.