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प्रश्न
Why do submerged plants receive weak illumination than exposed floating plants in a lake?
उत्तर
Submerged plants like Vallisneria receive dim illumination because the majority of the light is reflected back by the water surface whereas, the floating hydrophytes receive and absorb maximum light as they are on the water surface.
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| Column I (Interaction) | Column II (Examples) | ||
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