2481: Which of the following periods can be considered as the era of mass revolution?
(a) 1856-1885 A.D.
(b) 1757-1857 A.D.
(c) 1920-1947 A.D.
(d) 1901-1919 A.D.
2482: Which one of the following winds is not a planetary wind?
(a) Trade
(b) Westerly
(c) Polar Easterly
(d) Monsoon
2483: Which of the following is not correct ?
(a) Doldrums : Equatorial low pressure zone
(b) Hurricane : A wind having a mean velocity of less than 100 km per hour
(c) New Moore Island : India
(d) Alluvium : Rann of Kutch
2484: A quantity is found to vary in the order 9, 16, 25, 36, 49. What will be the next number in the order?
(a) 57
(b) 64
(c) 68
(d) 61
2485: Which of the following is/are used as biofertilizers ?
I. Azolla
II. Blue-green algae
III. Alfalfa.
Select the correct answer using the codes given below.
Codes:
(a) II alone
(b) I and II
(c) I and III
(d) I, II and III