and Power Resources
Q22. Where is the site of the world’s first solar and wind
powered bus shelter?
Ans. The site of the world’s first solar and wind
powered bus shelter is in Scotland.
Q23. Name some important hydel power stations in India.
Ans. Some important hydel power stations in India are
Bhakra Nangal, Gandhi Sagar, Nagarjunsagar and Damodar valley projects.
Q24. Which countries are the leading producers of hydel power in
Ans. The leading producers of hydel power in the world
are Paraguay, Norway, Brazil, and China.
Q25. Where are geothermal power plants located in India?
Ans. In India, geothermal plants are located in
Manikaran in Himachal Pradesh and Puga Valley in Ladakh.
Q26. Why is CNG considered as eco-friendly fuel?
Ans. Compressed natural gas (CNG) is a popular
ecofriendly automobile fuel because it causes less pollution than petroleum and
Q27. Why petroleum is referred to as “black gold”?
Ans. Petroleum is thick black liquid. Petroleum and
its derivatives are called Black Gold as they are very valuable.
Q28. Write a brief note on mineral salt.
Ans. It is
obtained from seas, lakes and rocks. India is one of the world’s leading producers
and exporters of salt.
Q29. What are the two main types of power resources?
What are the two main classifications of power resources?
resources may be broadly categorised as conventional and non-conventional
Q30. How are minerals identified?
Ans. Minerals can be identified on the basis of their
physical properties such as colour, density, hardness and chemical property
such as solubility.
Q31. Which Indian states are the major producers of bauxite?
bauxite producing areas are Jharkhand, Orissa, Chhattisgarh, Madhya Pradesh,
Gujarat, Maharashtra and Tamil Nadu.
Q32. What are the advantages and disadvantages of geothermal
Clean ecofriendly and always available.
Located far away from cities and so costly
to transport the electricity.
Q33. What are the advantages and disadvantages of nuclear energy?
Emits large amount of energy.
Generates radioactive waste.
Q34. Why is coal referred to as buried sunshine?
Why is coal called ''buried sunshine''?
Why is coal known as the buried sunshine?
Ans. The coal
which we are using today was formed millions of years ago when giant ferns and
swamps got buried under the layers of earth. Coal is therefore referred to as Buried
Q35. Who are the major producers of natural gas in the world?
Ans. Russia, Norway, UK and the Netherlands are the
major producers of natural gas. In India Jaisalmer, Krishna Godavari delta,
Tripura and some areas off shore in Mumbai have natural gas resources.
Q36. “All minerals are rocks but all rocks are not minerals.”
minerals are rocks but all rocks are not minerals because more than 2,800 types
of minerals have been identified but only about 100 are considered ore
Q37. Why are minerals considered non-renewable?
are a non-renewable resource. It takes thousands of years for the formation and
concentration of minerals. The rate of formation is much smaller than the rate
at which the humans consume these minerals.
Q38. Where are mineral deposits located in North America?
mineral deposits in North America are located in three zones: the Canadian
region north of the Great Lakes, the Appalachian region and the mountain ranges
of the west.