56: Retina in the eyes acts as a ........ in the camera.
(a) Lens
(b) Shutter
(c) Film
(d) None of these
57: As per the NSSO 70th Round "Situation Assessment Survey of Agricultural Households", consider the following statements
1. Rajasthan has the highest percentage share of agricultural households among its rural households.
2. Out of the total agricultural households in the country, a little over 60 percent belong to OBCs.
3. In Kerala, a little over 60 percent of agricultural households reported to have received maximum income from sources other than agricultural activities.
58: Which one of the following pairs of kings of ancient and medieval periods of Indian history and the works authored by them is correctly matched?
(a) Krishnadevaraya : Samaranganasutradhara
(b) Mahendravarman : Mattavilasaprahasana
(c) Mahendravarman : Mattavilasaprahasana
(d) Somesvara : Amuktamalayada
59: With reference to Indian economy, consider the following
1. Bank rate
2. Open market operations
3. Public debt
4. Public revenue
Which of the above is/are component/ components of Monetary Policy?
(a) 1 only
(b) 2, 3 and 4
(c) 1 and 2
(d) 1, 3 and 4
60: Which of the following can be threats to the biodiversity of a geographical area?
1. Global warming
2. Fragmentation of habitat
3. Invasion of alien species
4. Promotion of vegetarianism
Select the correct answer using the codes given below :
(a) 1, 2 and 3 only
(b) 2 and 3 only
(c) 1 and 4 only
(d) 1, 2, 3 and 4