write about the three components of Environment with examples in 100 words
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environment is defined as the natural world in which people, animals and plants live. The term Environment is derived from French terms ‘virer(to turn) or ‘in/viron’ meaning to encircle; and denotes the interaction between natural surroundings and organisms including human beings. Thus, environment is the surroundings in which living and non-living things live, interact, grow and perish. The conditions present in the surroundings govern the life of creatures therein.
Four components of Environment
The four major components of environment include lithosphere, hydrosphere, atmosphere and biosphere, corresponding to rocks, water, air and life respectively.
- Lithosphere is the outermost layer of earth called crust, which is made of different minerals. Its depth can reach up to 100 kilometers and is found on both land (terrestrial crust) and oceans (oceanic crust). The main component of lithosphere is earth’s tectonic plates.
- Hydrosphere comprises of all forms of water bodies on earth including oceans, seas, rivers, lakes, ponds, streams etc. It covers 70% of earth’s surface. 97.5% of water found on Earth is in the oceans in the form of salt water. Only 2.5 % of water on Earth is freshwater. Out of this, 30.8% is available as groundwater and 68.9% is in frozen forms as in glaciers. Amount of 0.3% is available in rivers, reservoirs and lakes and is easily accessible to man.
- Atmosphere is gaseous layer enveloping the Earth. The atmosphere with oxygen in abundance is unique to Earth and sustains life. It mainly comprises 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.038% carbon dioxide, and traces of hydrogen, helium, and noble gases. The amount of water vapour present is variable.
- Biosphere refers to all the regions on Earth where life exists. The ecosystems that support life could be in soil, air, water or land. The term Biosphere was coined by Geologist Edward Suess who used this term for place on Earth where life can be found. Biosphere refers to the sum total of all living matter, the biomass or biota. It extends from the polar ice caps to the equator, with each region harboring some life form suitable to the conditions there.
Answer:
Explanation:
In our surround there is living and nonliving things which are together form life. Hydrosphere, atmosphere, and geosphere are the component of the environment that surrounds us. Hydrosphere, the wet environment that consists of water, covers most of earth surface.
Sea, rivers, lakes and under surface water are all aquatic environment. Land or what is called geosphere composed of deserts, mountains, hills and level lands. Atmosphere is around the earth and consists of gases such as hydrogen, oxygen, nitrogen ………etc. The interaction of all these make up a liveable surround with unique properties that correlates organisms.
Not all environments suitable to us. Deserts even cold or hot ones do not correlate individuals. However some organisms live in these environments because they have special adaptation to their environment. To us, we the humans, prefer to live in cities where comfortable civilization life. However others don’t prefer that because of the crowed, noise, and pollution that emerge from humans activities. They used to live in villages where more green lands, natural landscapes, and more quiet than cities.
To divide environments’ sorts we can mention 3 kinds of environments Natural, industrial, and social environment.
Natural environment:
Include water, light, land, air and all organisms that live in nature.