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प्रश्न
Why are there a wide range of colours, hardness, crystal forms, lustre and density found in minerals?
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उत्तर
A wide range of colours, hardness, crystal forms, lustre and density is found in minerals because they are formed by a combination of various elements whose formation depends upon the physical and chemical conditions under which they occure.
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संबंधित प्रश्न
(30.1) Two features A and B are marked on the given political outline map of India. Identify these features with the help of the following information and write their correct names on the lines marked in the map:
A. Iron – ore mines
B. Terminal station of East – West corridor
(30.2) On the same political map of India, locate and label the following:
Vishakhapatnam – Software Technology Park
Why is there a pressing need for using renewable energy sources in India? Explain any five reasons.
On the same political outline map of India, locate and label the following with appropriate symbols:
(i) Narora - a nuclear power plant
(ii) Rourkela - an iron and steel plant
(iii) Kandla - a major sea port.
Mention two uses of mineral oil.
Mention two products of an oil refinery. Name two oil refineries in India, one along the coast and one away from the coast.
What is ‘off-shore drilling’? What do you mean by ‘Mumbai High’?
Name the groups into which minerals can be classified.
Name some Energy Minerals.
Name any two raw materials derived from coal.
(B) Locate and label any three of the following with appropriate symbols on the same given political outline map of India:
| (i) Tarapur | – | Nuclear Power Plant |
| (ii) Tungabhadra | – | Dam |
| (iii) Mohali | – | Software Technology Park |
| (iv) Kandla | – | Major Sea Port |
| (v) Durgapur | – | Iron and Steel Plant |
