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Question

Prepare a list of animals being endangered by poaching. Which environmental factors have the potentialities to increase the chance of developing cancer? [3 + 2]

WBBSE Class X Life Science 05 (b) Environmental Pollution 05 (d) Biodiversity and Its Conservation 05 Mark 2025

Answer

Animals endangered due to poaching

Poaching for skin, fur, horns, tusks, bones, or meat has pushed many animals towards extinction. Important examples include:

Animal Reason for Poaching
Tiger poached for skin, bones, and body parts used in illegal trade
One-horned rhinoceros killed for its horn
Elephant hunted for ivory tusks
Leopard poached for skin and fur
Musk deer hunted for musk glands

Environmental cancer risk factors:

Factor Effect
Chemical pollutants Damage DNA; act as carcinogens (pesticides, tobacco smoke, industrial chemicals)
Radiation UV rays, X-rays, and ionizing radiation increase mutation risk

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