Answer:
To be considered a civilization, the 7 following requirements must be met:
Stable food supply.
Social structure.
System of government.
Religious system.
Highly developed culture.
Advances in technology.
Highly developed written language.
The Ganges river sorry don’t know other ones
Answer:
The Trinity bomb was detonated atop a 100-foot steel tower. With an estimated explosive yield of 21,000 tons of TNT, the fireball vaporized the tower and shot hundreds of tons of irradiated soil to a height of 50,000 to 70,000 feet, spreading radioactive fallout over a very large area
Explanation:
The steamboat. it helped travel rivers upstream
Hello.
The answer is C.
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