1. Which impressive physical feature separates China from India? (Try to remember 9th grade)

The Himalayas, the highest mountain range of the world, serves as a natural limit between the two Asian giants. It establishes a barrier between the Plateau of Tibet (China) and the alluvial plains of northern India. It includes Mount Everest, which is 8,850 metres high (29,035 feet).

Explanation:

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.