How has terrorism and increase nuclear proliferation created instability and insecurity?

turning first to the threat of nuclear weapons proliferation: the Treaty on the ... and the sheer diversity of technology has made it much more difficult to control or ... leave unaddressed the underlying causes of insecurity and instability — such ... Nuclear Security and the Protection Against Nuclear Terrorism.

Explanation:

(d) rivers.

explanation:

civilizations developed around rivers because their waters provided places to hunt and fish. also, as the rivers flooded, the lands around them became fertile. this allowed them to support farming. this is especially true of the nile river, which flooded the same time each year.

c) troops march forward in close formation against newer, more accurate weapons