Differentiate between a. Local and Standard time b. Equator and Prime meridian

Read the paragraph under the heading of “Internal structure of the earth” and answer the question.

How can you say the earth is still very active?

What is a grid and how does it help us ?

If every state follows its local time then what problems will arise?

With the help of your teachers find out the standard meridian of given countries:

1. Nepal 2. Pakistan 3. Bangladesh 4. England 5. Malaysia 6. Japan