Question:
Give Reason for Environmental aspects must be carefully looked into before building huge dams.
Answer:
When dams are built large areas surrounding the dam are submerged in water. This could lead to destruction of natural vegetation, agricultural land or even displace settlements. So, one must look into all these aspects before building a dam.
Mineral and Power Resources
Q 1.
Write the advantages and dis ¬advantages of non-conventional sources of energy.
Q 3.
Give five ways in which you can save energy at home.
Q 5.
What are the two main classifications of power resources?
Q 6.
Name and describe briefly methods of extraction.
Q 7.
Name two regions rich in natural gas resources.
Q 8.
Why are petroleum and its derivatives called "black gold"?
Q 9.
Give Reason for Environmental aspects must be carefully looked into before building huge dams.
Q 10.
How are mineral extracted from earth?
Q 11.
Distinguish between Biogas and natural gas
Q 12.
Distinguish between Ferrous and nonferrous minerals
Q 13.
Differentiate between a rock and an ore.
Q 14.
Which was the first country to develop hydroelectricity ?
Q 16.
What is natural gas?
Q 17.
Mention a few minerals and their uses.
Q 20.
Distinguish between Metallic and non-metallic minerals
Q 21.
What is an ore? Where are the ores of metallic minerals generally located?
Q 23.
Name some important hydel power stations in India.
Q 24.
Why is coal called "buried sunshine"?
Q 25.
Why are petroleum and its derivatives called "black gold"?
Q 26.
Why are minerals considered non-renewable?
Q 27.
Name two areas in Australia, which have large deposits of gold.
Q 28.
Write a brief note on salt.
Q 29.
Distinguish between Conventional and non conventional sources of energy
Q 30.
Write common uses of minerals.
Q 31.
Name and describe briefly methods of extraction.
Q 32.
Name two minerals in whose production India contributes a significant part.
Q 33.
What are the classifications of minerals?
Q 34.
Name the different rocks that minerals occur in?
Q 35.
Pick the Correct Asnwer
(a) Which one of the following is NOT a characteristic of minerals?
(i) They are created by natural processes
(ii) They have a definite chemical composition
(iii) They are inexhaustible
(iv) Their distribution is uneven
(b) Which one of the following is NOT a producer of mica?
(i) Jharkhand (ii) Karnataka (iii) Rajasthan (iv) Andhra Pradesh
(c) Which one of the following is a leading producer of copper in the world?
(i) Bolivia (ii) Ghana (iii) Chile (iv) Zimbabwe
(d) Which one of the following practices will NOT conserve LPG in your kitchen?
(i) Soaking the dal for some time before cooking it
(ii) Cooking food in a pressure cooker
(iii) Keeping the vegetables chopped before lighting the gas for cooking
(iv) Cooking food in an open pan kept on low flame
Q 36.
In which industry is silicon important? From which ore is it obtained?
Q 37.
Where are minerals found?
Q 38.
Quarrying can become a major environmental concern.
Q 39.
Give reason for Petroleum is referred to as “black gold”.
Q 40.
Name the leading tin producers in Asia.
Q 41.
What is Hydel power?
Q 42.
Name any three common minerals used by you every day.
Q 43.
Name nuclear power stations in India.
Q 44.
How is hydroelectricity, produced?
Q 45.
Name and describe some non- conventional sources of energy.
Q 46.
Describe the mineral distribution in North America.
Q 47.
Give a brief note on mining.
Q 48.
Which sources of energy would you suggest for (a) rural areas (b) coastal areas (c) Arid Regions?
Q 49.
Give reasons.
(i) Environmental aspects must be carefully looked into before building huge dams.
(ii) Most industries are concentrated around coal mines.
(iii) Petroleum is referred to as "black gold".
(iv) Quarrying can become a major environmental concern.
Q 50.
Answer the following questions.
(i) Name any three common minerals used by you every day.
(ii) What is an ore? Where are the ores of metallic minerals generally located?
(iii) Name two regions rich in natural gas resources.
(iv) Which sources of energy would you suggest for
(a) rural areas (b) coastal areas (c) arid regions
(v) Give five ways in which you can save energy at home.
