Answer:
B. He greatly improved existing steam engines for use in factories.
Explanation:
James Watt made important changes to the design of the steam engine, which increased efficiency and made steam engines cheaper to run.
Answer:
<em>Xerxes</em>
Before invading, Xerxes implored the Spartan king Leonidas to surrender his arms.
Explanation:
What are you trying to say?
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A democracy works under meeting and exercise the government in person, while a republic is the meeting and agreements of the citizens. They assemble and administrate to keep the discussion civil.
