336: Hydrogen fuel cell vehicles produce one of the following as "exhaust"
(A) NH3
(B) H2O2
(C) CH4
(D) H2O
337: At a time when empires in Europe were crumbling before the might of Napoleon which one of the following Governors- General kept the British flag flying high in India ?
(a) Warren Hastings
(b) Lord Cornwallis
(c) Lord Wellesley
(d) Lord Hastings
338: Rennin and lactase, the enzymes required to digest milk, disappear in the human body by the age of
(a) two
(b) three
(c) five
(d) eight
339: Very small-time intervals are accurately measured by the:
(a) Pulsars
(b) White dwarfs
(c) Atomic clocks
(d) Quartz clocks
340: 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