(a)   would cause extensive damage because they destroyed homes, crops and drowned people and animals.

Mohenjo-daro had been rebuilt (a)   times as shown by several layers of foundations.

Hastinapur, a city which belonged to the Aryans, was destroyed by the (a)   river in about 800 BCE.

When there is a period of scarcity, a (a)   occurs.

A (a)   could result in a food shortage because there is no or little rain to grow crops.

According to the book called Arthasharta, (a)   should provide food for the people during famine

Constant warfare between rival kingdoms was inevitable because there was the (a)   class in the caste system

It was very common for different kingdoms in ancient India to forge diplomatic relations with (a)   and cunning.

Pushyamitra Shunga staged a (a)   to overhtrow the last Mauryan kign and seize power.

The Indian king would implement a (a)   system to prevent his people from rising up against him.

As early as 500 BCE, the people in China had learnt to build (a)   to prevent flooding from the Yangtze river.

The feudal lords became greedy for land and caused (a)   war in ancient China

The (a)   formed Red Eyebrows to kill Wang Mang because they were not happy with his polocies.

Kautilya, a prime minister of Chandragupta Maurya, wrote a textbook on government.

(a)  

During the period of the Eastern Zhou dynasty (771-221 BCE) the (a)   became greedy for more land and the king could no longer control them.

The most famous civil war in China occurred during this period. It is known as the period of the (a)             

The wars the kingdoms fought were violent, as a result many people were killed. The violence and instability ended only in 221 BCE when Prince Zheng defeated one by one the armies of the other kingdoms and unified China for the first time. Later he became known as (a)  

Folk stories suggest that ancient Indian kings who made their people angry by introducing unpopular laws like (a)   , could be overthrown by the people.

From the archaeological evidence of city walls and houses with several layers of foundations, we can conclude that  (a)   and  Harappa were rebuilt several times.