Coal and petroleum

What are the 2 types of natural resources ?

• Exhaustible and inexhaustible

• living and non-living

• Both A and B

• None of above

Examples of Exhaustible resources are :

• Air

• Coal

• Sunlight

• Al of the above

Examples of inexhaustible resources are :

• Coal

• Petroleum

• natural gas

• Air

A natural fuel such as coal or gas, formed in the geological past from the remains of living organisms is known as ......................

• Minerals

• Fuels

• Fossil fuels

• Decomposed waste

Coal is one of the .................... used to cook food .

• Petroleum

• Fuel

• Exhaustible natural resource

• Both B and C

• Both A and B

....................... is used as a fuel in various industries.

• Petroleum

• coal

• minerals

• none of above

Approximately how many years ago the earth had dense forest in low land wetlands.

• 30 million years

• 3000 million years

• 300 million years

• 30.0 million years

Under high ............................. and ............................. the dead plants got slowly converted to coal.

• pressure and moisture

• temperature and moisture and temperature

• pressure and temperature

• None of above

What is carbonisation ?

• As coal contains minerals , the slow process of dead leaves turning into coal.

• As coal contains carbon , the slow process of dead leaves turning into coal

• Both A and B

• None of above

What are the products of coal ?

• Coke , coal tar and coal gas

• coke , coal tar and carbon fibre

• coal gas , petroleum and coal tar

• All of above