I would say a natural disaster like a forest fire that could kill trees that are their homes. A forest fire could kill the trees and also the cones they eat for food and thus destroy their habitat and also a source of food and the branches they use to travel from one tree to another in the upper stories of the forest.
So if you think of a pyramid, the highest rank is on top, the order goes
1. Brahmins (highest rank or most respected) - priests, and the academic class
2. Kshatriyas - Rulers, administrators, and warriors
3. Vaishyas - artists, tradesmen, farmers, merchants
4. Shudras - commoners, peasants, servants
5. Dalits/outcastes/untouchables - street sweepers, latrine cleaners
Hope this helped a bit!
Yes that answer above is correct
After reviewing the graph you posted above, there is one radioactive isotope that has a half life that is approximate to the same as the estimated time of the origin of Earth.
The radioactive isotope is called Uranium 238. You can also write this out as U-238 or uranium/u. Any of these are acceptable for the answer.
The territory of a duke or duchess is called a Duchy.
