Given below are two statements:
Statement I: Non-biodegradable wastes are generated by the thermal power plants.
Statement II: Bio-degradable detergents leads to eutrophication.
In the light of the above statements, choose the most appropriate answer from the options given below:
Statement I: Non-biodegradable wastes are generated by the thermal power plants.
Statement II: Bio-degradable detergents leads to eutrophication.
In the light of the above statements, choose the most appropriate answer from the options given below:
- (A)Statement I is true but statement II is false
- (B)Both Statement I and Statement II are false.
- (C)Statement I is false but Statement II is true.
- (D)Both Statement I and Statement II are true.✓ Correct
Answer: (D)
Solution
Thermal power plants burn coal and leave fly ash and slag behind; no organism breaks these down, so they are non-biodegradable wastes and the first statement holds. Detergents, the biodegradable ones included, are formulated with phosphate builders, and the phosphate they release into water bodies supports heavy algal growth whose later decay consumes the dissolved oxygen. That nutrient-driven enrichment is eutrophication, so the second statement holds as well. Both Statement I and Statement II are true.
JEE Main · 2021 · 18 Mar 2021 · Shift 2 · Single correct option