Available Answers

1. 1.

   Fill in the blanks.

   1. An __________ is a type of rock in which minerals are found in high concentration.
   2. Gold and copper ores can found in __________ and __________ rocks.
   3. Kaolinite is a __________ mineral that can be found in some light bulbs.
   4. Salt is a non-metallic mineral that is commonly obtained from the __________.
   5. __________ and __________ are minerals used in the production of steel.
   6. Most of India's mineral wealth lies in the __________ region.
2. 2.

   Tick the sentences that are true. Correct the others.

   1. Fossil fuels are organic in nature.
   2. Metallic minerals are ductile and malleable.
   3. Fossil fuels are mostly found in metamorphic rocks.
   4. Limestone, clay and chalk are found as sedimentary ore deposits.
   5. Extraction of minerals from the ocean is profitable.
   6. Mica is used in photographic film to capture the picture.
3. 3.

   Multiple choice questions.

   1. This is a sedimentary rock:
      1. granite
      2. marble
      3. slate
      4. shale
   2. Bauxite is not used to make:
      1. automobiles
      2. plastics
      3. cans
      4. aeroplanes
   3. In India, iron ore is produced mainly in:
      1. Maharashtra
      2. Rajasthan
      3. Odisha
      4. Madhya Pradesh
   4. Drilling is a method used to extract:
      1. manganese
      2. copper
      3. limestone
      4. petroleum
4. 4.

   Iron ore is an important mineral. Give reasons.

5. 5.

   Coal is not classified as a mineral. Give reasons.

6. 6.

   Bauxite is used to make aeroplanes. Give reasons.