Answer:
Archaeologists also excavated a ditch for 30 feet. For thousands of years, farmers all over the world have used irrigation—diverting water from streams and rivers to water their fields. The Ancestral Puebloan people in the Four Corners region irrigated small plots of corn, bean, and squash. Mormons used this strategy in a big way.
Answer:
Native American tribes in the Southwestern United States, which include the Chiricahua, Jicarilla, Lipan, Mescalero, Salinero, Plains and Western Apache.
Answer:
B, American citizens were afraid that that Soviet Union might engage the United States in a nuclear war.
Explanation:
Quite simple: a region is the geographical zone where people lived and/or particular events took place. A period is the chronological segment of linear history (timeline) where such people lived and/or the event took place. For example, the Crusades took place in the Middle East while the period is the Middle Ages.
