Basic General Knowledge - Study Mode
[#276] The scientist who first discovered that the earth revolves round the sun was
Correct Answer
(C) Copernicus
Explanation
Solution: The scientist who first discovered that the earth revolves round the sun was Copernicus. Nicolaus Copernicus was a Polish astronomer who put forth the theory that the Sun is at rest near the center of the Universe, and that the Earth, spinning on its axis once daily, revolves annually around the Sun. This is called the heliocentric, or Sun-centered, system.
[#277] The number of sovereign countries who are members of the United Nations, is
Correct Answer
(D) 193
Explanation
Solution: The number of sovereign countries who are members of the United Nations, is 193. The United Nations member states are the 193 sovereign states that are members of the United Nations (UN) and have equal representation in the UN General Assembly.
[#278] The chemical name of Vitamin B is
Correct Answer
(A) thiamine
Explanation
Solution: The chemical name of Vitamin B is thiamine. Thiamine, also known as thiamin or vitamin B1, is a vitamin found in food, and manufactured as a dietary supplement and medication. Food sources of thiamine include whole grains, legumes, and some meats and fish.
[#279] The first NAM (Non-Aligned Movement) conference was held at
Correct Answer
(A) Belgrade (Yugoslavia)
Explanation
Solution: The first NAM (Non-Aligned Movement) conference was held at Belgrade (Yugoslavia). The Non-Aligned Movement was founded and held its first conference (the Belgrade Conference) in 1961 under the leadership of Josip Broz Tito of Yugoslavia, Gamal Abdel Nasser of Egypt, Jawaharlal Nehru of India, Kwame Nkrumah of Ghana, and Sukarno of Indonesia.
[#280] The credit of developing the polio vaccine goes to
Correct Answer
(A) Jones Salk
Explanation
Solution: The credit of developing the polio vaccine goes to Jones Salk. Jonas Edward Salk was an American medical researcher and virologist. He discovered and developed one of the first successful polio vaccines.