JEE PYQ: Environmental Chemistry Question 15
Question 15 - 2020 (05 Sep Shift 1)
The condition that indicates a polluted environment is:
(1) eutrophication
(2) 0.03% of $\text{CO}_2$ in the atmosphere
(3) BOD value of 5 ppm
(4) pH of rain water to be 5.6
Show Answer
Answer: (1)
Solution
The process in which nutrient enriched water bodies support a dense plant population which kill animal life by depriving it of oxygen results in subsequent loss of biodiversity is known as Eutrophication. So, this condition indicates a polluted environment.