Answer:
Since its establishment in 1945, the United Nations has been active in extensive areas including peace-keeping, arms control, the North-South problem, social and human rights issues
This is called monogamy as opposite to polygamy (multiple spouses at the same time).
Answer:
This disorder based on similar eff ects observed in PTSD.
Answer:
Should be similar in most ways to the experimental subjects
Explanation:
Control subjects in an experiments are subject that are not exposed to the independent variable, they usually have the same features with the experimental variable which is exposed to the independent variable. Control variable are used as a standard to know the effect of the independent variable on the experimental variable.
This is true because every civilization that was big and started out very early in the history of mankind needed to have a water source where they could use irrigation or just the water from a river in order to be able to grow crops and supply the demand for food in their area.