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Answer:
A: The rule of law!
Explanation:
Rule of law means that everyone is treated equally under the law & that no one is exempt from it.
They helped move stuff around to trade and they needed little food and water to survive.
Answer: Effusive eruptions occur when hot, (12000C) runny basalt magma reach the surface. Dissolved gases escape easily as the magma erupts, forming lava that flows downhill quite easily. Effusive eruptions build up gently-sloping Shield Volcanoes like Hawaii.
Explanation: