Answer:
D.
Explanation:
The early river civilzations were the civilzations settled alongside the river. The four early river civilizations included Indus civilizations, Nile civilization, Tigris-Euphrates civilization, and Huang He civilization.
The characteristics that the early civilizations developed along the Nile and the Tigris-Euphrates had in common was the transportation and communication system. Through transportation and communication, the culture and economy of these civilizations were promoted. They were promoted through agriculture, fertile soil, and natural waterways.
Therefore, option D is correct.
Answer:
federalism, separation of powers, checks and balances
Explanation:
Answer:
A war started, and many citizens of Russian city Stalingrad died
Explanation:
Answer:
The Ptolemaic model of the universe was heliocentric. the Copernican system included uniform circular motion. his years of careful observations of the planets.
Explanation:
Hope I could help!Stay safe and drink water<3