Question

2. How are the following formed :
(a) Coal​

Answer 1

Explanation:

Coal formed millions of years ago when the earth was covered with huge swampy forests where plants - giant ferns, reeds and mosses - grew. As the plants grew, some died and fell into the swamp waters. New plants grew up to take their places and when these died still more grew.

Answer 2

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How coal is formed?

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Millions of years ago,dense forests got buried under the soil due to the natural processes like floods, storms, earthquakes.These got compressed as more and more soil deposits over them.When they got buried deep into the soil,they were exposed to very high temperature and pressure.Under these conditions,dead plants slowly converted into coal.This process of conversion of dead vegetation into coal is called carbonisation.

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Is coal exhaustible or inexhaustible resource?

Coal is exhaustible resource.

Write some characteristics and uses of coal.

✨Coal is on of the fuels used to cook food.

✨Coal is as hard as stone and is black in colour.

✨When heated in air, coal burns and produces mainly carbon dioxide gas.

✨Coal is processed in industry to get some useful products such as Coke, Coal tar and Coal gas.

✨ Coal is used as a fuel in various industries,in thermal power plants.

#Hope it helps you!