911: The variations in temperatures from 0 degree C to 100 degree C with respect to time of two liquids P, Q are shown in the graph given below :
Which one of the following statement is correct ?
(a) During heating, liquid P remained hotter than liquid Q throughout
(b) At no point of time during heating did the two liquids have the same temperature
(c) P attained the temperature of 100 degree C faster than Q
(d) Q attained the temperature of 100 degree C faster than P
912: The density of sea water is highest as:
(a) Depth increases and salinity increases
(b) Depth decreases and salinity increases
(c) Depth increases and salinity decreases
(d) Depth decreases and salinity decreases
913: During which Five year Plan was the Emergency clamped, new elections took place and the Janata Party was elected?
(a) Fifth
(b) Fourth
(c) Sxith
(d) Third
914: Among the following, which one is the largest exporter of rice in the world in the last five years?
(a) China
(b) India
(c) Myanmar
(d) Vietnam
915: Consider the following statements :
1. Caffeine, a constituent of tea and coffee is a diuretic.
2. Citric acid is used in soft drinks.
3. Ascorbic acid is essential for the formation of bones and teeth.
4. Citric acid is a good substitution for ascorbic acid in our nutrition.
Which of the statements given above are correct ?
(a) 1 and 2, only
(b) 1, 2 and 3, only
(c) 3 and 4 only
(d) 1, 2, 3 and 4