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How does waste accumulation and improper disposal of waste affect the aquatic life?

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Question

How does waste accumulation and improper disposal of waste affect the aquatic life?

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Solution

  1. Plastic Entanglement and Suffocation: Marine animals and birds frequently become entangled in discarded plastic six-pack rings, nets, and packaging bands, causing severe physical trauma, restricted movement, and suffocation.
  2. Internal Blockages from Ingestion: Fish, sea turtles, and seabirds mistake floating plastics and microplastics for food; consuming these non-biodegradable items causes fatal gastrointestinal blockages, internal injuries, and starvation.
  3. Severe Oxygen Depletion (Hypoxia): The accumulation of organic waste and sewage in water bodies triggers rapid microbial decomposition, which consumes dissolved oxygen and creates suffocating “dead zones” where aquatic species cannot survive.
  4. Chemical Contamination and Toxicity: Improper disposal of industrial effluents, heavy metals, and hazardous chemicals poisons aquatic life, leading to bioaccumulation of toxins through the food chain, organ damage, and reproductive failure.
  5. Habitat Destruction and Smothering: Silt, construction debris, and heavy solid waste settle on riverbeds and ocean floors, smothering benthic (bottom-dwelling) organisms, destroying coral reefs, and ruining critical spawning grounds.
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Chapter 16: Waste Management Part I - Impact of Waste Accumulation - Exercises [Page 315]

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Austine Vas, Hemant M. Pednekar, Vidhya Malar Geography Our Earth [English] Class 10 ICSE
Chapter 16 Waste Management Part I - Impact of Waste Accumulation
Exercises | Q VI. 9. | Page 315
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