Sun's halo is produced by the refraction of light in
A. Water vapour in Stratus Clouds
B. Ice crystals in Cirro-cumulus clouds
C. Dust particles in stratus clouds
D. Ice crystals in Cirrus clouds
Answer: Option D
A. Water vapour in Stratus Clouds
B. Ice crystals in Cirro-cumulus clouds
C. Dust particles in stratus clouds
D. Ice crystals in Cirrus clouds
Answer: Option D
The years 1700, 1800 and 1900 were
A. Leap years
B. Not leap years
C. Famine years
D. Years of natural calamities
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