Answer:
Invasions from Barbarian tribes, The rising of Constantinople, Overexpansion, Government Corruption and Instability, Economic Troubles, Slave reliance for money, and Christainity rising.
Dragons are legendary creatures in Chinese mythology such add turtles and fish. But I can't find how many there actually are sorry
I’m not 100% sure but I think it is B; rainforest ( but I may be wrong )
The main point of the nuclear non-proliferation treaty was not spread the use of nuclear weapons so your best choice would be nuclear energy as a source of fuel was not to be allowed.