581: When ants bite, they inject

(a) glacial acetic acid
(b) methanol
(c) formic acid
(d) stearic acid
582: Finance Commission is appointed after every:

(a) 2 years

(b) 5 years

(c) 7 years

(d) 10 years
583: The chemical name of 'Aspirin' is:

(a) Acetyl cynamide

(b) Acetyl salicylic acid

(c) Benzyl salicylate

(d) Tartaric acid
584: Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity?

(a) Oceans, lakes, grasslands, mangroves

(b) Mangroves, oceans, grasslands, lakes

(c) Mangroves, grasslands, lakes, oceans

(d) Oceans, mangroves, lakes, grasslands
585: The sufi saint who maintained that devotional music was one way of coming close to God was

(a) Muin-ud-din Chishti

(b) Baba Farid

(c) Saiyid Muhammad Gesudaraz

(d) Shah Alam Bukhari