(1) Distinguish between the following in not more than 30 words.
(a) ferrous and non-ferrous minerals
(b) conventional and non-conventional sources of energy
Answers
Answer:
a)ferrous minerals contain iron and non ferrous doesn't contain iron
b)Non-conventional sources of energy are the energy sources which are continuously replenished by natural processes. These cannot be exhausted easily, can be generated constantly so can be used again and again, e.g. solarenergy, wind energy, tidal energy, biomass energy and geothermal energyetc.
Conventional sources of energy are the natural energy resources which are present in a limited quantity and are being used for a long time. They are called non-renewable sources as once they are depleted, they cannot be generated at the speed which can sustain its consumption rate. They are formed from decaying matter over hundreds of millions of years.
Explanation:
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Answer:
Ferrous minerals
1 . These minerals contain iron ore .
2. They provide a strong base for the development of metallurgical industries.
3. Ferrous minerals constitute three fourth of total mineral production in India .
Example : Iron ore and manganese
Non ferrous minerals
1. These minerals do not contain iron .
2. They play a vital role in a number of metallurgical, engineering and electrical industries.
3. India's reserves of non ferrous minerals is not very large.
Example : Bauxite , lead and gold .
b) Conventional sources of energy
1. They are generally exhaustible and polluting .
Example : Firewood , coal and petroleum.
Non conventional sources of energy
1. They are usually inexhaustible and non
polluting
Example : Solar , wind , tidal and atomic energy .
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