GEOLOGY - CHAPTER2 (COAL AND PETROLEUM)

Question 1

CLASSIFICATION OF NATURAL RESOURCES

Answer 1

• NATURAL RESOURCES
• EXHAUSTIBLE
• INEXHAUSTIBLE

Question 2

These resources are present in unlimited quantity in nature and are not likely to be exhausted by human activities.
Ex. Sunlight, Air

Answer 2

INEXHAUSTIBLE RESOURCES

Question 3

the amount of these resources in nature is limited. They can be exhausted in human activities.
Ex. Forests, wildlife, minerals, coal, petroleum , natural gas

Answer 3

EXHAUSTIBLE RESOURCES

Question 4

coal petroleum and natural gas. These were formed from the dead remains of living organisms ( fossils). So, these are all known as fossil fuels.

Answer 4

NATURAL RESOURCES-

Question 5

• One of the fuels use to cook food
• Earlier, it was used in railway engines to produce stream to run the engine
• It is also used in thermal power plants to produce electricity
• also used as a fuel in various industries

Answer 5

Coal

Question 6

it is a tough porous and black substance. It is an almost pure form of carbon. Coke is used in the manufacture of steel and in the extraction of many metals.

Answer 6

COKE-

Question 7

• black, thick liquid with an unpleasant smell

Answer 7

COAL TAR

Question 8

• is obtained during the processing of coal to get coke.

It is used as a fuel in many industries situated near the coal processing plants

Answer 8

COAL GAS

Question 9

• Petrol is a used fuel in light automobiles such as motorcycles/ scooters and cars
• Heavy motor vehicles like trucks and tractors run on diesel
• Petrol and diesel are obtained from a natural resource called petroleum

Answer 9

PETROLEUM

Question 10

Very important fossil fuel because it is easy to transport through pipes

Natural gas is also used as a starting material for the manufacture of a no. of chemicals and fertilizers.

Answer 10

NATURAL GAS