Question

Lignite, bituminous and anthracite are different ranks of:
(a) Nuclear fuel
(b) Coal
(c) Natural gas
(d) Biogas

Answer 1

it is b . coal , all these 3 are examples of coal

Answer 2

Answer:

Lignite, bituminous, and anthracite are different ranks of coal. Option (b) is correct.

Explanation:

• Coal comes in the category of non-renewable fossil fuel.
• Coal is of four different ranks when the heat content of the coal is taken into consideration.

In the formation of the coal, the first stage is called peat.

The dark brown matter formed due to sediments pressure in the second stage is called lignite.

The soft coal formed in the third stage due to added pressure is called bituminous.

The lustrous and hard coal obtained in the fourth stage due to high temperature and pressure is called anthracite.

So, lignite, bituminous, and anthracite are different ranks of coal.

Option (b) is correct.