मराठी

If DDT is sprayed in a lake, after 15 years, its highest concentration will be found in ______.

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प्रश्न

If DDT is sprayed in a lake, after 15 years, its highest concentration will be found in ______.

पर्याय

  • phytoplankton

  • zooplanktons

  • fish-eating birds

  • fishes

MCQ
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उत्तर

If DDT is sprayed in a lake, after 15 years, its highest concentration will be found in fish-eating birds.

Explanation:

DDT is non-biodegradable and biomagnifies as it passes through the food chain. Fish-eating birds occupy a higher trophic level than plankton and fish, so they accumulate the highest concentration among these choices.

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पाठ 20: Environmental Issues - EXERCISES [पृष्ठ ११५२]

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सरिता अग्रवाल Biology [English] Class 12 ISC
पाठ 20 Environmental Issues
EXERCISES | Q I. 13. | पृष्ठ ११५२
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