Match each environmental change with its…

Biology Questions

Match each environmental change with its description: (A) biomagnification (B) acid rain (C) eutrophication (1) Chemicals react with water and oxygen that enter the water system. (2) Nutrients in excessive amounts enter water systems, causing algal blooms. (3) A high concentration of toxic chemicals is present in the bodies of animals at the highest trophic levels.

Answer

The appropriate matches are – (A) Biomagnification – option (3), (B) Acid Rain – option (1), (C) Eutrophication – option (2). Explanation: Biomagnification refers to the buildup of toxic substances in organisms at higher levels of a food chain. When pollutants like nitric oxide and sulfur dioxide interact with water and oxygen, they create harmful acids, leading to acid rain. Eutrophication occurs when excessive nutrients, particularly nitrogen and phosphorus, flow into water bodies, promoting rapid algae and phytoplankton growth, ultimately resulting in algal blooms.

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