Answer:
United States Soviet Union and United Kingdom singed on it on 5th August 1963 and later it was opened for other countries who wanted to become a signatory
Explanation:
On August 5, 1963, representatives of the United States, Soviet Union and Great Britain signed the Limited Nuclear Test Ban Treaty, which prohibited the testing of nuclear weapons in outer space, underwater or in the atmosphere.
C hope that helps have a god one
I think question 8 is 1, not 100% sure though...
