Man And His Environments

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    Chapter 25 Man And His Environments ( 31 videos)  (Practice Test)

      25.1: Biogeochemical Cycle (Practice Test)
      Biogeochemical Cycle
    1. Biogeochemical Cycle
      2. Water Cycle
    2. Water Cycle
      3459 views
      3. The Nitrogen Cycle
    3. The Nitrogen Cycle
      3523 views
      4. More on Nitrogen Cycle
    4. More on Nitrogen Cycle
      1332 views
      25.2: The Flow of Energy (Practice Test)
      Concept of Trophic Levels
    1. Concept of Trophic Levels
      2. Concept of Productivity
    2. Concept of Productivity
      3. Energy Relations Between Different Trophic Levels
    3. Energy Relations Between Different Trophic Levels
      566 views
      4. Ecological Pyramids
    4. Ecological Pyramids
      3570 views
      5. Ecological Pyramids of Biomass
    5. Ecological Pyramids of Biomass
      4800 views
      6. Ecological Pyramids of Number
    6. Ecological Pyramids of Number
      2412 views
      25.3: Ecological Succession (Practice Test)
      Succession
    1. Succession
      3668 views
      2. Two Major Forms of Succession
    2. Two Major Forms of Succession
      3751 views
      3. Secondary Succession
    3. Secondary Succession
      1248 views
      4. Stages of Succession
    4. Stages of Succession
      3627 views
      5. Xerosere
    5. Xerosere
      2174 views
      6. More on Xerosere
    6. More on Xerosere
      903 views
      25.4: Population Dynamics
      Population Dynamics
    1. Population Dynamics
      25.5: Human Impact on Enviroment (Practice Test)
      Human Impact on Environment
    1. Human Impact on Environment
      2. Nuclear Power
    2. Nuclear Power
      1342 views
      3. Carbon Dioxide and Global warming
    3. Carbon Dioxide and Global warming
      1142 views
      4. Acid Rain
    4. Acid Rain
      6450 views
      5. Mechanism of Acid Rain
    5. Mechanism of Acid Rain
      1945 views
      6. Effect of Acid Rain
    6. Effect of Acid Rain
      3475 views
      7. Depletion of Ozone
    7. Depletion of Ozone
      6088 views
      8. Ozone Depletion due to Oxides of Nitrogen and Sulphur
    8. Ozone Depletion due to Oxides of Nitrogen and Sulphur
      2102 views
      9. Role of Chlorofluorocarbons in Destroying Ozone
    9. Role of Chlorofluorocarbons in Destroying Ozone
      1861 views
      10. Effect of Ozone Depletion
    10. Effect of Ozone Depletion
      3297 views
      25.6: Environmental Resources And Their Depletion (Practice Test)
      Renewable and Non-Renewable Resources
    1. Renewable and Non-Renewable Resources
      4895 views
      2. Renewable Resources (Land and Wildlife)
    2. Renewable Resources (Land and Wildlife)
      1832 views
      3. Conventional Energy Resources
    3. Conventional Energy Resources
      1877 views
      4. Non - Conventional Energy Sources
    4. Non - Conventional Energy Sources
      2347 views