Identify the segment of environement in each case where - (i) organisms can survive and reproduce. (ii) soil and minerals are found. (iii) oxygen gas is found. (iv) all types of water resources are found.
Answers
Explanation:
There are four different segment of environment:
1. Atmosphere:
The air envelope surrounding the earth is known as Atmosphere. This protective envelop surrounding earth sustain life on earth and protect us from unfriendly environment of outer space. It extends to the height of about 1600 km from the earth surface. It consists of life saving gases like O2 for human beings and animals and CO2 for plants.
2. Hydrosphere:
It covers more than 75% of the earth surface either as oceans or as fresh water. Hydrosphere includes sea, rivers, oceans, lakes, ponds, streams etc.
3. Lithosphere:
It means the mantle of rocks constituting the earth’s crust. The solid component of the earth is called Lithosphere, which includes soil, earth, rocks and mountains etc. The lithosphere mainly contains three layers –
(a) Inner and Outer Core:
Central fluid or vaporised sphere of diameter of about 2500km from the centre.
(b) Mantle:
It is about 2900-3000 km above the core in molten state.
(c) Crust:
Outermost solid zone about 8-40 km above mantle.
4. Biosphere:
This segment of environment consists of atmosphere (air- 02, N2, C02). Lithosphere (land- minerals, salts, food, nutrients) and hydrosphere (water- dissolved oxygen, Salts) which influences and support the entire biotic and abiotic life systems.
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