Hey there! It looks like you've asked a multiple choice question without providing your answer choices. Don't fret I've found them. They are:
<span>A) An Ice Age started and the planet got colder.
B) An Ice Age ended and the planet warmed up.
C) Humans were starving and needed more food.
D) Humans invented boats and could sail to Europe.
The correct answer is B. As the planet got warmer people wanted to move further north.</span>
Supporters of using the atomic bomb against Japan at the end of World War II thought an invasion would cost too many American lives. The US knew that they would win the war way before attacking Japan. The American army made a decision to put an end to the war and save many American lives by sacrificing Japan civil people.
