(d) None of these
Ans: (c)
332. Which of the following are fresh water fish?
     1) Rohu
     2) Pomphret
     3) Catla
     4) Eel
     (a) 1 and 2
     (b) 2 and 3
     (c) 1 and 3
     (d) 2 and 4
Ans: (c)
333. Which of the following is a mixed fertiliser? [IAS 1995]
     (a) Urea
     (b) Ammomium sulphate
     (c) CAM
     (d) NPK
Ans: (d)
334. Match the following:
     Crop           Disease
     A. Bajra       1. Rust
     B. Wheat       2. Wilt
     C. Groudnut 3. Tikka
     D. Banana      4. Ergot
         A          B         C        D
     (a) 1          2         3        4
     (b) 1          4         3        2
     (c) 4          1         3        2
     (d) 4          2         1        3
Ans: (c)
335. Which of the following is an insectivorous plant? [BSF Exam 1990]
     (a) Hydrilla
     (b) Nepenthes
     (c) Marsilea
     (d) None of these
Ans: (b)
336. Which one of the following chemicals is most suitable to control storage insects on a small scale? [CDS 1992]
     (a) B.H.C.
     (b) E.D.B.
     (c) Celphos
     (d) Sevidol
                                                              628