One of the main reasons why <span>some of the slaveholding states decided not to join the confederacy is because although they supported slavery, they were also patriotic, and felt that the Union needed to stay together no matter what the cost. </span>
Cars became popular in 20th century. I think this is the right answer.
Answer: 
Explanation:
Given
A Planet is moving at a rate of 3 cm/year
distance between planets is 1500 km
and 1 km=1000 m
1 m=100 cm
No. of years required to cover 1500 km=
Calais was a shorter trip across the channel than the trip to Normandy was.
Answer:
The right answer is B.
Explanation:
Before the arrival of the Europeans, African kingdoms or other political units had their own forms of slavery. People became slaves as punishment for a crime, as payment for a debt, or being captured as a prisoner of war. Those are patterns seen in other civilizations as well. Despite the existence of those forms of slavery, it can´t be compared with what was done by the European slave traders.
