311. Which Vitamin gets destroyed on heating?
A: E
B: B
C: K
D: C
312. Places experiencing an equal impact of an earthquake are called_______?
A: Seismic belts
B: Seismic lines
C: Seismic plates
D: Seismic waves
313. Bleaching action of chlorine is by___?
A: Reduction
B: Oxidation
C: Decomposition
D: Hydrolysis
314. The dominant phase of the life cycle in these organisms is haploid?
A: Bacteria
B: Mosses
C: Protozoa
D: None
315. Summer solstice means_____?
A: Longest night
B: Longest day
C: Smallest day
D: None of these
316. Which of the following mixture of gases is required in gas welding?
A: Oxygen and hydrogen
B: Oxygen and ethylene
C: Acetylene and oxygen
D: Acetylene and hydrogen
317. An element that does not occur in nature but can be produced artificially is_____?
A: Uranium
B: Plutonium
C: Radium
D: Thorium
318. Inside which organ is the gallbladder located?
A: Liver
B: Pancreas
C: Kidney
D: Small intestine
319. The study of organisms and their environment is known as _?
A: Ecology
B: Acoustics
C: Ichthyology
D: None of these
320. The echo (reflected sound) will be distinctly heard only at ordinary temperatures if the distance of the reflecting surfaces from the source of sound is at least _?
A: 120 ft
B: 1120 ft
C: 56 ft
D: 100 ft
E: None of these
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