Q.1 Define the following terms:
(i) Lithosphere (ii) Hydrosphere (iii) Atmosphere (iv) Biosphere (v) Biotic factors
(vi) Abiotic factors (vii) Biogeochemical cycle
Q.2 Explain land breeze and sea breeze.
Q.3 Explain the following cycles:
(i) Water cycle (ii) Carbon cycle (iii) Nitrogen cycle (iv) Oxygen cycle
Q.4 Explain Green House effect.
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the greenhouse is a natural process which warms Earth the greenhouse effect is the process by which the radiations from a planets atmosphere the process by which the radiations from a planets atmosphere warm the planet surface to temperature above what it would be without this atmosphere Radiactive gas in a planet atmosphere radiate energy in all directions
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