19. In the “arm’s race” what was developed?

Initially, only the United States possessed atomic weapons, but in 1949 the Soviet Union exploded an atomic bomb and the arms race began. Both countries continued building more and bigger bombs. In 1952, the United States tested a new and more powerful weapon: the hydrogen bomb.

Explanation:

first paragraph (and busy all the night ,with a silence deep and white )

whose power in the senate is equal to the power of the speaker of the house?