586: Which of the following States has the largest coastal area in India?

(a) Kerala

(b) Tamil Nadu

(c) Karnataka

(d) Andhra Pradesh
587: Municipal water in India is generally treated with:

(a) Chlorine

(b) Potassium permanganate

(c) Sodium Chloride

(d) Sodium Carbonate
588: To visit Tuticorin, Mangalore and Paradip, one does not require to go to:

(a) Tamil Nadu

(b) Kerala

(c) Karnataka

(d) Orissa
589: Which one among the following rivers is the longest?

(a) Lena
(b) Congo
(c) Amur
(d) Amazon
590: Mahmud Gawan was the Prime Minister in

(a) Gujarat kingdom

(b) Kingdom of Kashmir

(c) Bahmani kingdom

(d) Kingdom of Mysore