1506: The Sixth and the Eighth Five-Year Plans covered the period 1980-85 and 1992-97 respectively. The Seventh Five-Year Plan covered the period
(a) 1987-92
(b) 1986-91
(c) 1985-90
(d) 1988-94
1507: Why DDT is banned in western countries?
(a) It remains in environment for a long time
(b) The insects are immunised
(c) It is a highly poisonous insecticide
(d) None of the above
1508: "Momentum for Change : Climate Neutral Now" is an initiative launched by
(a) The Intergovernmentai Panel on Climate Change
(b) The UNEP Secretariat
(c) The UNFCCC Secretariat
(d) The World Meteorological Organisation
1509: A train completes a journey with a few stoppages in between at an average speed of 40 km per hour. If the train had not stopped anywhere, it would have completed the journey at an average speed of 60 km per hour. On an average, how many minutes per hour does the train stop during the journey?
(A) 18 minutes per hour
(B) 15 minutes per hour
(C) 20 minutes per hour
(D) 10 minutes per hour
1510: Consider the following crops :
1. Cotton
2. Groundnut
3. Maize
4. Mustard
Which of the above are Kharif crops?
(a) 1 and 2
(b) 1, 2 and 3
(c) 3 and 4
(d) 1, 2, 3 and 4