DDT residues are rapidly passed through food chains causing biomagnification because DDT is:
Correct answer: D. Liposoluble
- A. Moderately toxic
- B. Non-toxic to aquatic animals
- C. Water soluble
- D. Liposoluble
Explanation
Biomagnification is caused by non-degradable pollutants like DDT. Heavy metals and persistent pesticides (e.g., organochlorine or chlorinated hydrocarbons like DDT) pass into the food chain and increase in amount per unit weight of organisms with the rise in trophic level because they are liposoluble.
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Ecosystems include biotic and abiotic components, food chains and webs, energy flow, nutrient cycles, populations and ecological relationships. Pollution and conservation cover air, water, soil and noise pollution, their effects on organisms, biodiversity loss, protected areas, sustainable resource use and methods for reducing environmental damage.
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