Answer:
B. Tigris and Euphrates river valley
Explanation:
<span>John D. Rockefeller did everything by his own. Vertical integrations means that he employed his own workers, then he constructed barrels to store oil and rent wagons and horses to transport that barrels. So it's called vertical integration. </span>
The correct answer should be <span>Japan's military strength increased.
The country ended it's isolation and modernized itself adopting many new technologies which drastically improved their military strength.</span>
The statement "Throughout much of the nineteenth century, Westerners' concept of the universe was based on the ideas of Isaac Newton" is True.Sir Isaac Newton was an English physicist and mathematician. He is most famous for his law of gravity. He was also a key driver in the scientific revolution of the 17th century. Amongst other theories, Newton postulated that the sun kept the planets in orbit by its gravitational pull. He also stated that the moon orbited around the earth.
It satisfied the north because the southerners had to pay taxes for the slaves they had.
it satisfied the south because they didn't have to pay as much money as counting a whole slave
