86: Which one of the following does not border Panama?
(a) Costa Rica
(b) Pacific Ocean
(c) Colombia
(d) Venezuela
87: Which one of the following is NOT radioactive ?
(a) Astatine
(b) Francium
(c) Tritium
(d) Zirconium
88: Federation, Indian responsibility, reservation and safeguards were the three lynchpins of
(a) Gandhi-lrwin Pact
(b) Macdonald Award
(c) Poona Pact
(d) Radcliffe Award
89: Consider the following statements:
1. Sensex is based on 50 of the most important stocks available on the Bombay Stock Exchange (BSE).
2. For calculating the Sensex, all the Sensex stocks are assigned proportional weightage.
3. New York Stock Exchange is the oldest stock exchange in the world.
Which of the following statements given above is/are correct?
(a) 1 and 3
(b) 2 and 3
(c) 2 only
(d) None
90: Which one of the following is the continent with the highest mean elevation in the world ?
(a) Antarctica
(b) North America
(c) Asia
(d) South America