Grade 8 Coal and its useful products

Why trees are called a natural resource?

• They are green in colour

• They are used to make wood and other materials

• They grow back if we cut them

• They are in more quantity

Which of the following are examples of exhaustible natural resources?

• Water and Sunlight

• Wildlife and minerals

• Coal and sunlight

• All of the above

Which of the following is the characteristic of exhaustible natural resource?

• They are unlimited

• They are limited

• They are not dependent on nature

• All of the above

Find the odd one out.

• Coal

• Plastic

• Petroleum

• Natural Gas

What is the source of coal formation?

• Plants

• Animals

• Both plants and animals

• None of the above

What is carbonisation?

• The slow process of conversion of dead animals into coal.

• The fast process of conversion of dead plants into coal

• The slow process of conversion of dead vegetation into coal

• The fast conversion of dead animals into coal

Which among the following is a product of coal?

• Chromium

• Cobalt

• Coke

• Calcium

Which among the following is used to cook food?

• Cobalt

• Coal

• Coal gas

• Coke

Which among the following has an unpleasant odour?

• Coke

• Coal Tar

• Coal Gas

• Petroleum

Which among the following is obtained as a by-product of product formation of coke?

• Coal

• Coal Tar

• Coal Gas

• All of the above