Question

V.
Write two example of each.
1. Fossil fuels
2. Renewable Resources
3. Non-Renewable Resources
4. Product of Crude Petroleum
5. Pollution​

Answer 1

★Write two example of each:

1. Fossil fuels

Examples

1. Coal.
2. Petroleum.

Explanation

Remains of plants and animals which were buried under the earth for millions of years get converted by the heat and pressure into fossil fuels. Fossil fuel such as coal, petroleum and natural Gas.

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2. Renewable Resources

Examples

1. Solar energy.
2. Wind energy.

Explanation

Renewable resources are those which get renewed or replenished quickly. Some of these are unlimited and are not affected by human activities, such as solar and wind energy.

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3. Non-Renewable Resources

Examples

1. Coal.
2. Natural Gas.

Explanation

Non-renewable resources are those which have a limited stock. Once the stocks are exhausted it may take thousands of years to be renewed or replenished. Coal, Petroleum, Natural Gas are some examples.

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4. Product of Crude Petroleum

Examples

1. Kerosene.
2. Diesel.

Explanation

Petroleum is a dark oily liquid. It has an unpleasant odour. It is a mixture of various constituents such as petroleum gas, petrol, diesel, lubricating oil, etc. The process of separating the various constituents of petroleum is known as refining. It is carried out in a petroleum refinery.

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5. Pollution

Examples

1. Water Pollution
2. Air Pollution.

Explanation

The addition of harmful substances in air, water and soil that can cause harm or discomfort to living organisms is called pollution.

Water pollution, air pollution and soil pollution are three main types of pollution.

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