If India's official language is English, what would be the reason for this?

What system is used in India to divide their society into groups based on birth or occupation?

How were products and ideas traded between Asia and European countries?

This river is a major river in India and is considered one of the most polluted rivers on the planet. It flows through the most fertile and densely populated part of India, beginning in the Himalaya Mtn and dumping into the Bay of Bengal.

What river is it?

What are the two biggest countries located in only Asia?

Tell me one con (bad thing) about the Himalaya Mountains in early societies?

Why is Japan nicknamed the "Ring of Fire"?

What geographic factor best explains the use of terrace farming?

"Grandparents, parents, unmarried children, and married sons and their families often live together in the same home."

What institution of society (tradition) does this describe?

Explain what happens with cultural diffusion.