Answer:
A river gives the inhabitants a reliable source of water for drinking and agriculture. Additional benefits include fishing, fertile soil due to annual flooding, and ease of transportation. The first great civilizations, such as those in Mesopotamia and Egypt, all grew up in river valleys.
Gun laws could protect us from criminals but harm us by putting guns in the wrong hands
It keeps everything equal
the answer is B. to ensure domestic tranquility
They felt confident because of war power
