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Snow-blindness in Antarctic region is due to

1. Inflammation of cornea due to high dose of UV-B radiation
2. High reflection of light from snow
3. Damage to retina caused by infra-red rays
4. Freezing of fluids in the eye by low temperature

Correct answer: Inflammation of cornea due to high dose of UV-B radiation

Solution

Snow-blindness is caused by inflammation of the cornea due to excessive exposure to UV-B radiation, which is intensified by reflection from snow surfaces.

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