Science, asked by riddhima15, 1 year ago

algae is seen to cover stagnant ponds very fast give reason

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Answered by daiem
4
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Algae are primitive plants that, via photosynthesis, combine water and carbon dioxide to form sugars for energy and growth. Algae produce oxygen, a useful by-product, but when sunlight is not available at night, they quickly respire. This respiration uses the stored sugars and oxygen to form carbon dioxide, which depletes the oxygen in the pond. There are basically two types of pond algae:
GREEN WATER: These single-celled organisms—which remain suspended in water—are so tiny, they pass through even the finest filter. If conditions are right, meaning there’s plenty of nutrients and sunlight, as many as five million algae cells per milliliter of pond water can be present. This filamentous species, which grows in long strands, adheres to rocks and waterfalls. They eventually tangle together, forming thick, unsightly mats that can double their weight within 24 .


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