Answer the following Questions :-
1) Name any three common minerals used by you everyday?
2) Give five ways in which you can save energy at home?
3) Why most of the industries are concentrated around coal mines?
4) Petroleum is referred to as "black gold". Give reason.
5) Quarrying can become a major environment concern. Give reason
6) Name two regions rich in natural gas resources.
Answers
Answer:
1.The three common minerals used every day are Salt, Gold and Copper
2.One can save energy at home by:
(i) using of solar energy
(ii)using biogas as cooking fuel.
(iii)drying clothes in sunlight instead of electric dryers
(iv)witching off fans and lights when not required.
(v)using pressure cookers for cooking.
3.Most industries are concentrated around coal mines because coal is an important source of energy. It is used as raw material in various industries. So to reduce the transportation cost, most of the industries are located near coal mines.
4.Petroleum is referred to as 'black gold' because when crude oil is extracted from the land it is black in colour. People call it gold because of its oils and value. It is very difficult to find.
5.Quarrying can become a major environmental concern because it destroys the flora and fauna around it. It destroys the humus of soil, which is required for the growth of plants and crops. It produces dust, which causes air pollution and also produces noise pollution
6.The regions which are rich in reserves of Natural Gas Resources are: (a) Russia, U.K. and Norway in Europe. (b) Jaisalmer, Krishna-Godavari basin and Digboi Region in India.
Answer:
1. Salt, Gold and Copper.
2. Turn off the fan when you leave a room.
Close your drapes or drop your window shades during the day.
Wash your clothes in cold water.
Wrap or cover foods and drinks in the refrigerator.
Always use the cold water faucet, unless you really want hot water.
3. Most industries are concentrated around coal mines because coal is an important source of energy. It is used as raw material in various industries. So to reduce the transportation cost, most of the industries are located near coal mines.
4. Petroleum is referred to as 'black gold' because when crude oil is extracted from the land it is black in colour. People call it gold because of its oils and value. It is very difficult to find.
5. Quarrying can become a major environmental concern because it destroys the flora and fauna around it. It destroys the humus of soil, which is required for the growth of plants and crops. It produces dust, which causes air pollution and also produces noise pollution.
6. Russia, U.K. and Norway in Europe.