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  • Match the items in column I and column II and choose the correct option: Column I A. UV

Match the items in column I and column II and choose the correct option:

 

Column I

Column II

A. UV

i. Biomagnification

B. Biodegradable Organic matter

ii. Eutrophication

C. DDT

 

iii. Snow blindness

 

D. Phosphates

iv. BOD

The correct match is:

a. A-ii, B-i, C-iv, D-iii

b. A-iii, B-ii, C-iv, D-i

c. A-iii, B-iv, C-i, D-ii

d. A-iii, B-i, C-iv, D-ii

Answers (1)

The answer is the option (c) A (iii), B (iv), C (i), D (ii)

UV-snow blindness (photokeratitis or snow blindness) is caused by prolonged exposure to UV B light.
Biodegradable organic matter, or BOD, is a measurement of the amount of oxygen used by the microorganisms that break down biological or organic waste using dissolved oxygen.
DDT-Biomagnification (Biomagnification is the term for the accumulation of DDT, a non-biodegradable insecticide, in biological systems; the amount accumulated rises with each trophic level)
Phosphates- Eutrophication (Overuse of fertilisers causes different mineral salts and phosphates to contaminate adjacent water sources. This caused the algal population to grow out of control, depriving other organisms of oxygen and enriching the water body with organic materials.)

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