CBSE 2025 · Region 5 · Set 3 · Q25 · 2 marks
Study the food web given below :
(a)Identify the food chain(s) in which the eagle receives the highest energy from the producers.(b)Identify the organism in which a non-biodegradable pesticide will be found in maximum concentration. Name the term used for this phenomenon.
Study the food web given below :
(a)
Identify the food chain(s) in which the eagle receives the highest energy from the producers.
(b)
Identify the organism in which a non-biodegradable pesticide will be found in maximum concentration. Name the term used for this phenomenon.
Marking-scheme solution
(a) Grass ⟶ Mouse ⟶ Eagle Grass ⟶ Mongoose ⟶ Eagle
(b) Eagle Biological magnification
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CBSE Class 10 Science past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.