Complete the following concept chart.

Answer the following in 25-30 words.

What is the role of UNESCO in the context of heritage sites?

Answer the following in 25-30 words.

Find out the world cultural heritage sites located in Maharashtra and write their names.

Explain the following statements giving reasons.

It is essential to study the history of technology.

Explain the following statements giving reasons.

The list of World Heritage Sites is announced by UNESCO.