746: From the point of view of evolution of living organisms, which one of the following is the correct sequence of evolution ?
(a) Shark - Tortoise - Otter
(b) Tortoise - Shark - Otter
(c) Shark - Otter - Tortoise
(d) Otter -Tortoise - Shark
747: Which one of the following pairs is not correctly matched ?
(a) Govind Sagar Dam : Satluj River
(b) Ukai Reservoir Dam : Tapi River
(c) Kolleru Lake : Krishna River
(d) Wular Lake : Jhelum River
748: Federation, Indian responsibility, reservation and safeguards were the three lynchpins of
(a) Gandhi-lrwin Pact
(b) Macdonald Award
(c) Poona Pact
(d) Radcliffe Award
749: Which one of the following figures will generate a cone when rotated about one of its straight edges ?
(a) An equilateral triangle
(b) A sector of a circle
(c) A segment of a circle
(d) A right-angled triangle
750: La Nina is suspected to have caused recent floods in Australia. How is La Nina different from El Nino?
1. La Nina is characterized by unusually cold ocean temperature in equatorial Indian Ocean whereas El Nino is characterized by unusually warm ocean temperature in the equatorial Pacific Ocean.
2. El Nino has adverse effect on south-west monsoon of India, but La Nina has no effect on monsoon climate.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2