27: Why does the Government of India promote the use of 'Neem-coated Urea' in agriculture?
(a) Release of Neem oil in the soil increases nitrogen fixation by the soil microorganisms
(b) Neem coating slows down the rate of dissolution of urea in the soil
(c) Nitrous oxide, which is a greenhouse gas, is not at all released into atmosphere by crop fields
(d) It is a combination of a weedicide and a fertilizer for particular crops
30: Match List I with List II and select the correct answer using the codes given below the Lists :
List I----------------------------------------------------------------------------------List II
I. Land allotted to big feudal landlords--------------------------------------------------(A) Jagirdari System
II. Land allotted to revenue farmers or rent collectors-----------------------------------(B) Ryotwari System
III. Land allotted to each peasant with the right to sublet, mortgage, transfer, gift or sell-(C) Mahalwari System
IV. Revenue settlements made at village level-------------------------------------------(D) Zamindari System
Codes:
(a) I-A, II-C, III-B, IV-D
(b) I-A, II-D, III-B, IV-C
(c) I-C, II-D, III-A, IV-B
(d) I-B, II-A, III-C, IV-D