I can answer the cotton gin one it was a invention used to pick the seeds of cotton made it faster for cotton picking in the south
Answer: The Harappan people used to trade with foreign lands traveling through seas. The seaports found in Harappan civilization state that they were not bound to their own territories. ... It was found that they also imported Jade from China and Cedarwood which were all traded through the rivers such as Sutlej, Ravi, and Indus.
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Answer:
False is the correct answer.
Explanation:
Answer: The discovery of gold nuggets in Sacramento Valley which came to be known as The California Gold Rush.
Answer:
The answer is C. An electron microscope.
Explanation: