561: With reference to the circumstances in Indian agriculture, the concept of "Conservation Agriculture" assumes significance. Which of the following fall under the Conservation Agriculture?
1. Avoiding the monoculture practices
2. Adopting minimum tillage
3. Avoiding the cultivation of plantation crops
4. Using crop residues to cover soil surface
5. Adopting spatial and temporal crop sequencing/crop rotations
Select the correct answer using the code given below:
(a) 1, 3 and 4
(b) 2, 3, 4 and 5
(c) 2, 4 and 5
(d) 1, 2, 3 and 5
562: Two important characteristics of a hypothesis are that it should be testable and that it should be stated in a manner that it can be refuted. Which one of the following hypotheses, fulfils these characteristics ?
(a) Intelligent persons have good memory
(b) Some birds are animals
(c) Some businessmen are dishonest
(d) All men are mortal
563: Which one of the following is present in the largest amount in terms of per cent by mass in the earth's crust ?
(a) Silicon
(b) Oxygen
(c) Carbon
(d) Calcium
564: Sepoy mutiny of 1857 failed due to the:
(a) Lack of effective organisation
(b) Lack of unity of purpose
(c) Lack of unified system of leadership
(d) All of the above
565: Match List I (Famous Former Sports-person) with List II (Game/Sport) and the select the correct answer using the code given below the lists.
List I (Famous Former Sports-person) : List II (Game/Sport)
A. Wally Grout : 1. Swimming
B. Eusebio : 2. Lawn Tennis
C. Rod Laver : 3. Cricket
D. Mark Spitz : 4. Foortball
5. Basketball
(A) 3 5 2 4
(B) 2 4 3 1
(C) 3 4 2 1
(D) 2 5 3 4