Questions and Answers: Minerals Resources

A. MCQs

  1. (d) Chota Nagpur Plateau is the largest and rich mineral area in our country.
  2. The minerals are extracted from the deep holes called (b) mines.
  3. (d) All of these (Silver, Gold, and Copper are all metallic minerals).
  4. (c) Limestone is an example of a non-metallic mineral.
  5. (a) Bombay high is an oil field.

B. Very Short Answer Type Questions

  1. What do you know about the minerals?
    Minerals are naturally occurring inorganic substances found deep inside the earth, possessing a distinct chemical composition and physical structure.
  2. What is mining?
    The scientific process of digging out or extracting valuable minerals from beneath the earth's surface is called mining.
  3. How many types of minerals are found on the earth?
    There are primarily two types of minerals: Metallic minerals and Non-metallic minerals.
  4. What are the uses of the minerals?
    Minerals are used in industrial manufacturing, construction of buildings and bridges, making machinery, transport vehicles, electronics, and making jewelry.
  5. Name any one gold deposit region of India.
    The Kolar Gold Fields (KGF) in Karnataka.

C. Short Answer Type Questions

  1. We should try to find out alternative sources of minerals. Why?
    Minerals are non-renewable, exhaustible finite resources that take millions of years to form. Since regular consumption is rapidly depleting our existing mineral reserves, finding alternative sources or synthetic substitutes is essential to sustain development without exhausting our natural reserves.
  2. Give a brief account on the distribution of minerals in India.
    Minerals are highly unevenly distributed in India. The Chhota Nagpur Plateau region (covering parts of Jharkhand, Odisha, and Chhattisgarh) is the richest storehouse of minerals like iron ore, coal, and manganese. On the other hand, the northern alluvial plains of India are virtually devoid of major economic mineral deposits.
  3. Differentiate between the metallic and non-metallic minerals.
    • Metallic Minerals: Minerals that contain metals in raw form. They are usually hard, shiny, can be melted to create new shapes, and conduct electricity (e.g., Iron ore, Copper, Gold).
    • Non-metallic Minerals: Minerals that do not contain metals. They do not have a metallic luster, break easily when struck hard, and do not conduct electricity (e.g., Coal, Limestone, Mica).
  4. Describe the mining process of the minerals.
    Mining is done using two main methods depending on the depth of the deposit:
    • Open-cast mining: Used when minerals lie at shallow depths; the top layers of soil and rocks are simply removed.
    • Shaft mining: Used for deep-seated mineral deposits, where deep vertical tunnels (shafts) are built down into the earth to reach and haul out the mineral.
  5. Mention the non-metallic minerals of India.
    Key non-metallic minerals mined in India include Coal, Petroleum (Mineral Oil), Mica, Limestone, and Gypsum.
  6. Why is it important to conserve mineral resources?
    Mineral resources are the backbone of industrial infrastructure, but their formation process takes millions of years, making them completely non-renewable. If used recklessly, they will run out completely, leaving nothing for future generations and halting economic progress.

D. Name any three places where...

  1. Coal is mined:
  2. Mineral oil is mined:
  3. Iron ore is mined:
  4. Iron and steel plants are located:
  5. Oil refineries are located:

E. True or False Statements

  1. Minerals are uniformly distributed in India. — False ($\times$)
  2. India is rich in iron and manganese. — True ($\checkmark$)
  3. Coal mines are located in the Himalayan mountains. — False ($\times$)
  4. Gold is mined in Karnataka State. — True ($\checkmark$)
  5. India has unlimited sources of petroleum. — False ($\times$)
  6. India is the largest producer of mica in the world. — True ($\checkmark$)

High Order Thinking Skills (HOTS)

  1. What would happen if there were no minerals?
    If minerals ceased to exist, global industrial activity and infrastructure would completely collapse. We wouldn't have metals to build vehicles, structures, or machinery, nor fossil fuels to generate electrical power or run manufacturing industries, essentially forcing human civilization back into a primitive pre-industrial age.
  2. What steps should be taken to save our mineral resources for the coming generations?
    To sustain mineral reserves for future generations, we must follow the principle of sustainable development:
    • Reduce wastage by using efficient, modern mining technologies.
    • Recycle metals extensively (like scrap iron and aluminum) to decrease new extraction needs.
    • Substitute scarce minerals with renewable alternatives, such as using solar and wind power instead of coal, or using bio-plastics and composites instead of structural metals.