हिंदी
Tamil Nadu Board of Secondary EducationHSC Science Class 12

Revision: Environmental Issues Biology (Botany and Zoology) HSC Science Class 12 Tamil Nadu Board of Secondary Education

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Key Points

Key Points: Greenhouse Effect and Global Warming
  1. Greenhouse gases like CO₂ and methane trap heat in the atmosphere, preventing its escape and causing the greenhouse effect.
  2. Increased burning of fuels and deforestation raise CO₂ levels, intensifying global warming.
  3. Global warming results in rising temperatures, melting polar ice, higher sea levels, and reduced agricultural and fishery yields.

Concepts [9]

  • Greenhouse Effect and Global Warming
  • Forestry
  • Afforestation
  • Alien Invasive Species
  • Conservation
  • Carbon Capture and Storage (CCS)
  • Rain Water Harvesting – RWH (Solution to Water Crisis – a Ecological Problem)
  • Environmental Impact Assessment (EIA)
  • Geographic Information System (GIS)
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