<span> They used rivers and streams for fishing, used trees to make shelter and canoes, and they were able to farm the fertile land.
Hope this helps.</span>
Answer:
c. mutual assured destruction.
Explanation:
Mutual assured destruction (MAD) is a military strategy of the modern world which is based on the principle of deterrence. It is based on the notion that two or more opposing sides possessing nuclear weapons pose a threat to one another of the mass destruction or total destruction. This prevents one side to initiate the first strike. Therefore after the second world war possession of nuclear weapons was considered important but according to this theory use of them led to complete annihilation.
The president of the United States serves as the chairman of the National Security Council (NSC). This agency was created by President Truman’s in 1947 in order to address tensions between Soviet Union and the United States. Its function is to advise the president on national security issues as well as foreign policy issues.
The rest of the federal agencies do not have the president of the US as their chairman.