<span>Background of US conflict with Soviet. During World War II, Roosevelt followed a policy of "the Grand Alliance" with the determination to get along with the Soviet Union. He was determined to follow this policy after the war and believed the United Nations, one of his pet projects, would maintain the postwar peace.</span>
Answer:
Question 1 = A
Question 2 = C
Question 3 = A
Explanation:
Coal was excellent to help in the production of metals as they required high temperatures. The demand for coal also created a need for more efficient methods of transport. Those methods of transport used the steam engine. This allowed people to gather and use resources from further away and more efficiently.
The locomotive engine could generate more power and carry heavier loads. This made it one of the best options for delivering raw materials, such as coal, or the transport of people over long distances.
The tracks were designed to be uniform and that all the trains and their carriages would have to comply with the same design. The tracks also had to be separated to allow for carriages of different size to pass each other. Stephenson also created a timetable for all trains on his lines to follow and double tracks to avoid any collisions.
First man flew in earth's history was made in 1632 and 1633. Hope this helps!
