The answer is the Cotton gin
Explanation: On the Western Front, the war was fought by soldiers in trenches. Trenches were long, narrow ditches dug into the ground where soldiers lived. They were very muddy, uncomfortable and the toilets overflowed. These conditions caused some soldiers to develop medical problems such as trench foot.
Soldiers in the First World War did not spend the whole of the time in the trenches. The British Army worked on a 16 day timetable. Each soldier usually spent eight days in the front line and four days in the reserve trench. Another four days were spent in a rest camp that was built a few miles away from the fighting.
Answer:
Right choice:
Africans crossed into South America when Africa and South America were one continent.
Explanation:
Such a statement is totally absurd. Humans as a species had not appeared on planet Earth when present-day Africa and South America were part of the same land mass hundreds of millions year ago. So, African could not cross to South America in the times of Pangea, the only megacontinent in the planet´s evolution. The other options are theories of the origins of man in the Americas, though there´s no consensus in the academic community.
There is no answer because you did not give us the "following".
