The german scientist, , is considered the father of the american space program.

The German scientist, Werhner von Braun, is considered the father of the American space program.

Explanation:

Wernher von Braun was a German mechanical and aerospace engineer, nationalized American in 1955 in order to be integrated into NASA. He is considered one of the most important rocket designers of the 20th century, and was the chie designer of the V-2 rocket, as well as the Saturn V rocket, which took man to the Moon.

nuclear fission produces the atomic bomb, a weapon of mass destruction that uses power released by the splitting of atomic nuclei the fighting in iwo jima and okinawa affected the allies' pacific strategy because truman decided to drop the atomic bomb on mainland japan.

you didn't post any options. a few things that spring is known to represent are: rebirth, birth, new life,   and life.