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

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

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

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

Answer the following questions in about 30 words:

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 the following questions in about 30 words:

What is a mineral?

Answer the following questions in about 30 words:

How are minerals formed in igneous and metamorphic rocks?

Answer the following questions in about 30 words:

Why do we need to conserve mineral resources?

Answer the following questions in about 120 words.

Describe the distribution of coal in India.

Answer the following questions in about 120 words.

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

Fill the name of the; correct mineral in the crossword below:

Across

1. A ferrous mineral (9)

2. Raw material for cement industry (9)

3. Finest iron ore with magnetic properties (9)

4. Highest quality hard coal (10)

5. Aluminium is obtained from this ore (7)

6. Khetri mines are famous for this mineral (6)

7. Formed due to evaporation (6)

Down

1. Found in placer deposit (4)

2. Iron ore mined in Bailadila (8)

3. Indispensable for electrical industry (4)

4. Geological Age of coal found in north east India (8)

5. Formed in veins and lodes (3)