The introduction of the cotton gin by Eli Whitney had a great effect on the plantations, as well as slavery. Before the cotton gin was invented, the production of cotton was a… painstaking business. To remove the cotton fiber from the seeds took a great amount of time.
Answer:
7000–4500 B.C. (Neolithic) The earliest permanent settlements belong to this period.
Economic problems for many countries in Europe in the 1920s and 1930s were mainly caused by "<span>B. World War I," since this war left many countries torn apart in terms of their economies. </span>
Be careful what category you put your question into next time!
It is where the ozone layer is located and it protects from harmful gamma rays and the sun from making the Earth too hot
hope this helps
Answer:
b
Explanation:
I'm not sure though sorry
