Answer:
North Korea
Explanation:
North Korea is the country that has threatened world security in recent years because of its interest in becoming a nuclear power. Its leader wants to impose himself as a world figure and uses the threat of nuclear weapon as a bargaining chip.
<u>Venezuela : </u>The country is on the verge of a civil war, totally collapsed, not a threat to the world, but to its people yes.
<u>Vietnam:</u> No major conflict happening there now, and certainly not an emerging nuclear power.
<u>Iraq: </u>still recovering from wars... not a nuclear threat.
In Mesopotamia it affected society because the hilly area they first lives in was hard for farming and had little water so the moved South to a place we now call ancient Sumer
The temperature is relatively uniform throughout the year in the tropics along the equator because of the variation of the net radiation of the sun in that area. At daytime, the sun warms the Earth and, at night, the heat is radiated back to space. The balance of these is the net radiation. At the equator, this value is almost always positive which means there would be more heat than being lost.