The answer to the question is C
The 1950s were the time of especially violent Cold War with the Soviet Union. The Soviet Union was a communist state and the state promoted atheism -sometimes referred to as state atheism. The United States promoted atheism to stress their difference from the Soviet Union.
the wanted equality. in the 1950s racial segregation was popular so there was a fight against racial discrimination and injustice in the 1950s
It is nitrogen dioxide.
And the o should be capitalized