Welcome to the forums Melu
Is this for an assignment?
It sounds like it.
Although this section of the forum is called "ask a teacher", keep in mind that questions should be related to specific aspects of English.
You won't find anyone here who will do an assignment for you. It's for your own good you know. You wouldn't learn anything if someone gave you the answer right away.
Have you tried finding some answers to your question?
How about starting here?
You'll see, a little effort goes a long way.
- For Teachers