What are the different techniques used for mineral extraction?

5

(a)

Explain the distribution of Iron, Manganese, Limestone and Gold in India.

5

(a)

What are the different types of minerals? Explain them briefly.

5

(a)

Distinguish between Anthracite and Bituminous Coal.

5

(a)

Write down the advantages and disadvantages of coal.

5

(a)

Write down some advantages of biogas.

5

(a)

What are non-conventional sources of energy ? Why there is a pressing need to use these resources of energy?

5

(a)

Describe the main types of formations in which the minerals occur.

5

(a)

Explain why the conservation of minerals is necessary.

5

(a)

What are the important uses of aluminium?

5

(a)