It is very cold and has less oxygen
Answer:
Thomas L. Jennings was the first black man to receive a patent. The patent was awarded on March 3, 1821 (US Patent 3306x) for his discovery of a process called dry-scouring which was the forerunner of today's modern dry-cleaning. Jennings was born free in New York City, New York in 179
Explanation:
Answer:
Hannibal
Explanation:
Moving to southern Italy in 216, Hannibal defeated the Romans again at the Battle of Cannae, where he annihilated the largest army the Romans had ever assembled.
Two problems sailors faced before the 1400s was they did not have good ways of knowing where they were if they got beyond the sight of land. And 2 the maps were poor and the risk ships were to slow to mak long voyages
