Answer:
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- Wind power is the fastest-growing energy source in the world. A wind turbine works the opposite of a fan. Instead of using electricity to make wind, a turbine uses wind to make electricity
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- The wind turns the blades, which spin a shaft, which connects to a generator and makes electricity. The electricity is sent through transmission and distribution lines to a substation, then on to homes, business houses and schools.
Mineral and Power Resources
Q 1.
Name and describe briefly methods of extraction.
Q 2.
Write the advantages and dis ¬advantages of non-conventional sources of energy.
Q 3.
What are the two main classifications of power resources?
Q 5.
Distinguish between Ferrous and nonferrous minerals
Q 6.
Give five ways in which you can save energy at home.
Q 8.
Differentiate between a rock and an ore.
Q 9.
Why are petroleum and its derivatives called "black gold"?
Q 12.
Name two regions rich in natural gas resources.
Q 14.
Give Reason for Environmental aspects must be carefully looked into before building huge dams.
Q 15.
Name some important hydel power stations in India.
Q 16.
Distinguish between Biogas and natural gas
Q 17.
What is natural gas?
Q 18.
Which was the first country to develop hydroelectricity ?
Q 19.
Write a brief note on salt.
Q 20.
Why are minerals considered non-renewable?
Q 21.
Distinguish between Metallic and non-metallic minerals
Q 22.
Why is coal called "buried sunshine"?
Q 24.
What is an ore? Where are the ores of metallic minerals generally located?
Q 25.
Write common uses of minerals.
Q 26.
How are mineral extracted from earth?
Q 27.
Mention a few minerals and their uses.
Q 28.
Why are petroleum and its derivatives called "black gold"?
Q 29.
Name two areas in Australia, which have large deposits of gold.
Q 30.
Name and describe briefly methods of extraction.
Q 31.
Name two minerals in whose production India contributes a significant part.
Q 32.
Name the leading tin producers in Asia.
Q 33.
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 34.
What are the classifications of minerals?
Q 35.
Distinguish between Conventional and non conventional sources of energy
Q 36.
Name the different rocks that minerals occur in?
Q 37.
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 38.
Where are minerals found?
Q 39.
Give reason for Most industries are concentrated around coal mines.
Q 40.
In which industry is silicon important? From which ore is it obtained?
Q 41.
Quarrying can become a major environmental concern.
Q 42.
What do the 3Rs stand for in context with conservation of natural resources?
Q 43.
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.
Q 44.
Name any three common minerals used by you every day.
Q 45.
Which sources of energy would you suggest for (a) rural areas (b) coastal areas (c) Arid Regions?
Q 46.
Give reason for Petroleum is referred to as “black gold”.
Q 47.
Give a brief note on mining.
Q 48.
Name nuclear power stations in India.
Q 49.
What is Hydel power?
Q 50.
Fill in the blank spaces given to complete each sentence.
(i) Metallic minerals are classified into …………….. and ………….
(ii) Gold and silver are …………. minerals.
(iii) Minerals can be extracted by …………. ,…………. or …………
(iv) Deep bores dug to reach mineral deposits are called …………
(v) Metallic minerals are generally found in ……….. and…………..rock formations.
(vi) The mineral deposits in North America are located in three zones: …………… the Appalachian region and the mountain ranges of the West.
(vii) ……………. is the largest producer of bauxite in the world.
(viii) ………….. is the most abundantly available fossil fuel.
(ix) Petroleum is drilled from ………
(x) Bhakra Nangal is an important …………….. station in India.
(xi) ……………. and……… are radioactive metals.
