(i) Lots of urea and phosphate fertilizer were used in the crops in the vicinity |
(ii) The area was sprayed with DDT by an aircraft |
(iii) The lake water turned green and stinky |
(iv) Phytoplankton populations in the lake declined initially, thereby greatly reducing photosynthesis |
A) (i),(iii)
B) (i), (ii)
C) (ii),(iii)
D) (iii),(iv)
Correct Answer: A
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