Sources of Energy

D.A.V. PUBLIC SCHOOL, KHERA KHURD

CLASS: VIII

TOPIC: Sources of Energy

Assignment

Look at the diagram below and answer the following questions.

1.     How many types of coal are there? Name them.

2.     Which type of coal receives maximum heat and pressure?

3.     Which type of coal has highest percentage of carbon and volatile material in it and which has lowest?

4.     Complete the following diagram on the basis of their order of occurrence under the Earth’s crust.

LIGNITE