Answer: Christopher Columbus too knew that the Earth was round, when he proposed to reach India by sailing west from Spain, he too knew that the Earth was round. India was the source of precious spices and other rare goods, but reaching it by sailing east was difficult, because Africa blocked the way.
Explanation:
MARK BRAINLYEST OR HELP ME WITH MY QUESTION PLZ
Answer: A . consists of solid rock
Explanation: I got it right on , Edge
tan A should be the corner try work out work out:

first and then add all the others (B=90)
Explanation:
A and C should be the same
The second group of southern states seceded after the attack at Fort Sumter. Four additional states left at this time. These states left because they had concerns about what would happen to slavery now that the fighting had begun. They waited until the Civil War began before leaving the Union.’!!!!!!!!!!