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

1

(a)

coal

(b)

bauxite

(c)

gold

(d)

zinc

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

1

(a)

sedimentary rocks

(b)

metamorphic rocks

(c)

igneous rocks

(d)

none of the above

Which out of the following minerals is formed by the decomposition of surface rocks, and leaves a residual mass of weathered material?

1

(a)

Gold

(b)

Bauxite

(c)

Zinc

(d)

Coal

Which out of the following minerals occur in the sands of valley floors and the base of hills?

1

(a)

Gold

(b)

Copper

(c)

Sulphur

(d)

Marble

What is 'Rat hole' mining?

1

(a)

Mining in places where there are lots of rats

(b)

Mining done by family members in the form of a long narrow tunnel

(c)

Mining that kills rats

(d)

None of these

Which place in India is ideal for utilising tidal energy?

1

(a)

Gulf of Kachchh

(b)

Gulf of Khambhat

(c)

Gulf of Mannar

(d)

None of these

What are the Khetri mines famous for?

1

(a)

Coal

(b)

Copper

(c)

Iron

(d)

Gold

Which out of the following is derived from the ocean waters?

1

(a)

Limestone

(b)

Sandstone

(c)

Cobalt

(d)

Bromine

Magnetite is the finest iron or with a new higher content iron upto

1

(a)

60%

(b)

70%

(c)

80%

(d)

90%

How many percent minerals intake represents in our total intake of nutrients?

1

(a)

0.3

(b)

3.0

(c)

0.5

(d)

5.0

Name four bauxite producing states.

1

(a)

1.Jharkhand
2.Odisha
3.Gujarat
4.Maharashtra

Name three states which are known for the production of mica.

1

(a)

1.Jharkhand
2.Bihar
3.Andhra Pradesh

What are commercial sources of energy?

1

(a)

Coal, Petroleum, Natural gas, Hydro electricity and Nuclear energy.

State the type of minerals.

1

(a)

Minerals are either metallic or non-metallic

Name the types of metallic minerals

1

(a)

Metallic minerals are of two types
(a)ferrous minerals
(b)Non-Ferrous minerals