1) Define the term Environment.
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The complex of physical, chemical, and biotic factors (such as climate, soil, and living things) that act upon an organism or an ecological community and ultimately determine its form and survival.
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✒ Environment
- The term environment has been derived from a French word “Environia” means to surround.
- It refers to both abiotic (physical or non-living) and biotic (living) environment.
- The word environment means surroundings, in which organisms live.
- Environment and the organisms are two dynamic and complex component of nature.
✒ Components of Environment
Environment mainly consists of atmosphere, hydrosphere, lithosphere and biosphere.
✏ But it can be roughly divided into two types such as :-
(a) Micro environment
(b) Macro environment
✏ It can also be divided into two other types such as :-
(c) Physical environment
(d) Biotic environment
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Let us understand types of Environment in detail.
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1. Micro environment
Micro environment refers to the immediate local surrounding of the organism.
2. Macro environment
Macro environment refers to all the physical and biotic conditions that surround the organism externally.
3. Physical environment
Physical environment refers to all abiotic factors or conditions like temperature, light, rainfall, soil, minerals etc. It comprises of atmosphere, lithosphere and hydrosphere.
4. Biotic environment
Biotic environment includes all biotic factors or living forms like plants, animals, Micro-organisms.
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