Minerals and Energy Resources

Solutions for Geography, Class 10, CBSE

Answer in about 120 words

2 questions

Question 1

Describe the distribution of coal in India.

Answer in about 120 words

Answer:

Gondwana coal is found in India in following regions:

  1. Neyveli (Tamil Nadu)
  2. Damodar valley (West Bengal- Jharkhand)
  3. Jharia, Raniganj, Bokaro
  4. Godavari and Mahanadi Valleys
  5. Son and Wardha Valley

Tertiary coal is found in India in following regions:

  1. Meghalaya
  2. Assam
  3. Arunachal Pradesh
  4. Nagaland

Question 2

Why do you think that solar energy has a bright future in India?

Answer in about 120 words

Answer:

Solar energy has a bright future in India because:

  1. India is a tropical country. Most parts of the country have 300 clear sunny days in a year. This provides enormous possibilities of tapping Solar energy.
  2. Solar energy can enhance India's energy security by reducing its dependence on fossil fuel imports to meet its growing energy needs.
  3. Solar energy is clean and renewable source of energy.
  4. The cost of solar panels and associated technologies has been steadily declining, making solar energy increasingly affordable.
  5. Solar energy is gaining popularity in rural and remote areas.
  6. Solar energy will replace firewood and dung cakes in rural areas, conserving the environment and ensuring adequate supply of dung cake based manure for agriculture.

Answer in about 30 words

4 questions

Question 1

Distinguish between the following in not more than 30 words.

(a) ferrous and non-ferrous minerals

(b) conventional and non-conventional sources of energy

Answer in about 30 words

Answer:

(a) Differences between ferrous and non-ferrous minerals:

S.
No.
Ferrous mineralsNon-ferrous minerals
1.They contain iron.They do not contain iron.
2.They are mainly used in building and construction industry.They are mainly used in electrical and automobile industry.
3.E.g., Manganese, Nickle, CobaltE.g., Bauxite, Copper

(b) Differences between conventional and non-conventional sources of energy:

Sl.
No
Conventional sources of energyNon-conventional sources of energy
1.They are non-renewable.They are renewable.
2.They cause pollution.They are non-polluting.
3.They have been in use from a long time.Technologies to use these sources have been recently developed or is still developing.
3.E.g., Coal, natural gas.E.g., Solar energy, Wind energy

Question 2

What is a mineral?

Answer in about 30 words

Answer:

Homogenous, naturally occurring substance with a definable internal structure and specific chemical composition is called a mineral. They form the earth's crust. Rocks are combination of minerals.

Question 3

How are minerals formed in igneous and metamorphic rocks?

Answer in about 30 words

Answer:

In igneous and metamorphic rocks, minerals are formed when substances in liquid/molten and gaseous forms are forced upward through cavities towards the earth's surface. They cool and solidify as they rise and get deposited in the cracks, crevices, faults or joints of these rocks.

Question 4

Why do we need to conserve mineral resources ?

Answer in about 30 words

Answer:

Mineral resources are limited on earth. If we continue to extract mineral at the same pace as we are doing now, they will soon exhaust. Therefore, we need to conserve mineral resources.

Multiple Choice Questions

4 questions

Question 1

Which one of the following minerals is formed by decomposition of rocks, leaving a residual mass of weathered material?

  1. coal
  2. bauxite
  3. gold
  4. zinc
Multiple Choice Questions

Answer:

bauxite

Question 2

Koderma in Jharkhand is the leading producer of which one of the following minerals?

  1. bauxite
  2. mica
  3. iron ore
  4. copper
Multiple Choice Questions

Answer:

mica

Question 3

Minerals are deposited and accumulated in the stratas of which of the following rocks?

  1. sedimentary rocks
  2. igneous rocks
  3. metamorphic rocks
  4. none of the above
Multiple Choice Questions

Answer:

sedimentary rocks

Question 4

Which one of the following minerals is contained in the Monazite sand?

  1. oil
  2. uranium
  3. thorium
  4. coal
Multiple Choice Questions

Answer:

thorium