866: If the product of two numbers is 320 and their ratio is 1 : 5, what is the difference between the squares of these two numbers ?
(a) 1024
(b) 1365
(c) 1536
(d) 1635
867: Due to their extensive rice cultivation, some regions may be contributing to global warming. To what possible reason/reasons is this attributable ?
1. The anaerobic conditions associated with rice cultivation cause the emission of methane.
2. When nitrogen based fertilizers are used, nitrous oxide, is emitted from the cultivated soil.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
868: Which one of the following rivers does not originate in India?
(a) Beas
(b) Ravi
(c) Chenab
(d) Sutlej
869: Kalhana's Rajatarangini (twelfth century) contains
(a) A collection of stories preaching morals
(b) The history of the dynasties of Kashmir
(c) The history of early Muslim rule in India
(d) An account of the early Indian voyages
870: Consider the following statements:
The Parliamentary Committee on Public Accounts
1. consists of not more than 25 Members of the Lok Sabha
2. scrutinizes appropriation and finance accounts of the Government
3. examines the report of the Comptroller and Auditor General of India
Which of the statements given above is / are correct?
(a) 1 only
(b) 2 and 3 only
(c) 1, 2 and 3
(d) 3 only