Answer:
D, helping civilizations grow lots of food.
Explanation:
Due to the surplus they were getting from the soil.
Answer:
A drought is an event of prolonged shortages in the water supply, whether atmospheric, surface water or ground water. A drought can last for months or years, or may be declared after as few as 15 days.
Answer:In the year 507 B.C., the Athenian leader Cleisthenes introduced a system of political reforms that he called demokratia, or “rule by the people” (from demos, “the people,” and kratos, or “power”). It was the first known democracy in the world.
