Answer:
Zheng He was important because: (C) He led seven overseas explorations.
Explanation:
As an admiral, explorer, eunuch, diplomat, and trader, Zheng He led China to become the superpower of the Indian Ocean, considered to be “the world's most important crossroads of trade”, in the 15th century.
The devastating effects of biological and nuclear weapons is with no doubt the main fact behind the desire.The world recognizes that chemical,biological and nuclear weapons poses a serious threat to world peace especially if they fall into the wrong regimes and incapable nations. they also the capacity of these weapons to be used on an armed civillians.