Marie curie - discovered new elements
Louis Pasteur- created vaccines
Gregor Mendel- discovered heredity
Joseph lister - proved the importance of sterilizing medical equipment
George Washington carver- pioneered new agricultural techniques
Answer:
slave owners would use violence as a way of assuring and maintaining their the slaves and would try to make sure they didn't come together in large groups to prevent them from rebelling against the slave owners.
Explanation:
B. The cities were very crowded
Everyone was in contact with each other
Answer:
The right answer is:
B. The United States exercises freedom of religion.
Explanation:
