1526: The release of which one of the following into ponds and wells helps in controlling the mosquitoes?
(a) Gambusia fish
(b) Snail
(c) Crab
(d) Dogfish
1527: Consider the following:
1. Electromagnetic radiation
2. Geothermal energy
3. Gravitational force
4. Plate movements
5. Rotation of the earth
6. Revolution of the earth
Which of the above are responsible for bringing dynamic changes in the surface of the earth?
(a) 1, 2, 3 and 4 only
(b) 1, 3, 5 and 6 only
(c) 2, 4, 5 and 6 only
(d) 1, 2, 3, 4, 5 and 6
1528: Consider the following statements:
1. There are 25 High Courts in India.
2. Punjab, Haryana and the Union Territory of Chandigarh have a common High Court.
3. National Capital Territory of Delhi has a High Court of its own.
Which of the following statements given above is/are correct?
(a) 1 and 2
(b) 2 and 3
(c) 3 only
(d) 1, 2 and 3
1529: The medieval Indian writer who refers to the discovery of America is
(a) Malik Muhammad Jayasi
(b) Amir Khusrau
(c) Raskhan
(d) Abul Fazl
1530: Other than Venezuela, which one among the following from South America is a member of OPEC?
(a) Bolivia
(b) Argentina
(c) Brazil
(d) Ecuador