Which of the following best describes the location of the first river valley civilizations? A) Civilizations developed in locations ideal for trade with natural defenses to prevent attack.
B) Civilizations developed in remote areas so that they did not have to spend tax money on defense walls.
C) Civilizations developed in areas well suited for agriculture but relied on trade for everything else.
D) Civilizations developed in areas ideal for trade but low in natural resources and defenses.

Civilizations developed in areas well suited for agriculture but relied on trade for everything else.

Explanation:

Examples of early river valley civilizations include the Indus Valley Civilization, Ancient Egypt (on the Nile), Mesopotamia (along the Tigris and Euphrates Rivers), and Chinese civilization along the Yellow River. The Indus River's source is in the Himalayan mountain range on the Tibetan Plateau near Lake Mansarovar

not to sure sdi, strategic defense initiative

for the united states of america, 1945 to 1964 was a time of high economic growth and general prosperity. it was also a time of confrontation as the capitalist united states and its allies politically opposed the soviet union and other communist countries; the cold war had begun.

explanation: