Answer:
Families have gotten smaller in the 19th century so parents can spend more time with their children. Compared with 19th century parents (mainly dads) would spend less time at work. Increasing the rise of parents spending more money on their kids.
Explanation:
Robert Oppenheimer was "<span>A scientist who led the development of the atomic bomb," since he was the leader of the highly classified and dangerous project known as the "Manhattan Project". </span>
Answer:
The mass migration of Muslims and Hindus. (C.)
Aye ese you're right it is b the heliocentric