Match List - I with List - II
| List - I | List - II |
|---|---|
| Action | Effects : Disturbs |
| A. DDT Biomagnification | I. Aging of lake |
| B. Nuclear energy | II. Electricity generation |
| C. Accelerated Eutrophication | III. Disturbance in calcium metabolism |
| D. Thermal power plants | IV. Damage to Indigenous flora and fauna |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → A-III, B-II, C-I, D-IV
(A) DDT Biomagnification — this matches (III) Disturbance in calcium metabolism. High DDT in birds disturbs calcium metabolism, so eggshells become thin and break early.
(B) Nuclear energy — this matches (II) Electricity generation. Nuclear power plants generate electricity, though with the risks of accidents and radioactive waste.
(C) Accelerated Eutrophication — this matches (I) Aging of lake. Eutrophication is the natural aging of a lake by nutrient enrichment; sewage and fertiliser run-off speed it up.
(D) Thermal power plants — this matches (IV) Damage to Indigenous flora and fauna. Their heated waste water kills temperature-sensitive organisms in the water body.