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.
Cold War, the open yet restricted rivalry that developed after World War II between the United States and the Soviet Union and their respective allies. The Cold War was waged on political, economic, and propaganda fronts and had only limited recourse to weapons.
Boosted economic prosperity through expansion of trade especially due to the rapid expansion and development of the 7000 mile silk road. The building of this road ensured that trade in farm produce developed a great deal.
Tim has used an abstract form of expression in his artwork NARRATIVE form element of artwork in being discussed here.
