Man and His Environment

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    Chapter 25 Man and His Environment (37 videos) (Practice Test)

      25.1: Biogeochemical Cycles (Practice Test)
      Water cycle
    1. Water cycle
      3459 views
      2. The Nitrogen Cycle
    2. The Nitrogen Cycle
      3523 views
      3. More on Nitrogen Cycle
    3. More on Nitrogen Cycle
      1332 views
      25.2: Energy Flow Through An Ecosystem (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 Biomass
    5. Ecological Pyramids Biomass
      4800 views
      6. Ecological Pyramids Number
    6. Ecological Pyramids Number
      2412 views
      7. Pyramids of Energy
    7. Pyramids of Energy
      841 views
      25.3: Ecological Succession (Practice Test)
      Succession
    1. Succession
      3668 views
      2. Kinds of Succession
    2. Kinds 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
      7. Hydrosere
    7. Hydrosere
      844 views
      8. More on Hydrosere
    8. More on Hydrosere
      575 views
      9. Wood land climax forest stage of hydrosere
    9. Wood land climax forest stage of hydrosere
      430 views
      25.4: Population Dynamics
      Human Impact on Environment
    1. Human Impact on Environment
      2. Principles of Demography
    2. Principles of Demography
      25.5: Human Impact On Environment (Practice Test)
      Nuclear Power
    1. Nuclear Power
      1342 views
      2. Carbon Dioxide and Global warming
    2. Carbon Dioxide and Global warming
      1142 views
      3. Acid Rain
    3. Acid Rain
      6450 views
      4. Mechanism of Acid Rain
    4. Mechanism of Acid Rain
      1945 views
      5. Effect of Acid Rain
    5. Effect of Acid Rain
      3475 views
      6. Occurrence of Ozone
    6. Occurrence of Ozone
      1391 views
      7. Ozone in Troposphere
    7. Ozone in Troposphere
      775 views
      8. Depletion of Ozone Layer
    8. Depletion of Ozone Layer
      1408 views
      9. Effect of Ozone Depletion
    9. 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. Non - Conventional Energy Resources
    3. Non - Conventional Energy Resources
      2347 views
      4. Tidal Power and Wind Power
    4. Tidal Power and Wind Power
      1283 views
      5. Solar energy
    5. Solar energy
      1073 views
      6. Geothermal Power
    6. Geothermal Power
      840 views
      7. Conventional Energy Resources
    7. Conventional Energy Resources
      1877 views