616: Which of the following rivers has a bird's foot delta?

(a) The Amazon

(b) The Brahmaputra

(c) The Mississippi

(d) The Nile
617: Which one of the following authorities recommends the principles governing the grants-in-aid of the revenues to the states out of the Consolidated Fund of India?

(a) Finance Commission
(b) Inter-State Council
(c) Union Ministry of Finance
(d) Public Accounts Committee
618: In which of the following areas can GPS technology be used?

1. Mobile phone operations
2. Banking operations
3. Controlling the power grids

Select the correct answer using the code given below:

(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
619: Among the following cities, which one is at the highest altitude above mean sea level?

(a) Bangalore
(b) Delhi
(c) Jodhpur
(d) Nagpur
620: Pearls are formed inside:

(a) Squids

(b) Snails

(c) Oysters

(d) Mollusks