Answer:
Aircraft - The air force became one of the most important parts of the military during World War II. Whoever had control of the air, often won the battle on the ground. Radar - Radar was a new technology developed right before the war. It used radio waves to detect enemy aircraft.
Explanation:
It was the use of the Atomic Bomb. Having won the war in Europe, the Americans
and their allies concentrated their efforts on the Far East. Japan refused to surrender despite the
on-going bombings and destruction of her army.
They also threatened to kill American POWs if they U.S. invaded Japan. Truman
ordered the use of the atomic bomb. It was
used in Hiroshima on August 6 then again on Nagasaki on August 9 resulting to
Japan’s surrender.
The Louisiana Purchase treaty is an important document in the study of Manifest Destiny because it shows the extent to which the United States was claiming land westward. The correct answer is D.
Arachaeologists believe Vinland was located in North America on the coast of the United States and Newfoundland in Canada. Vinland is the name given to the land historians believe Lief Erikson, a Norse Viking, first landed. This was before the Columbus exploration approximately five centuries preceding it and is the only Norse settlement outside of Greenland in the continent of North America.