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Punjab Board > 9th > General Science (Total Videos: 322)
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Chapter 6: Environment and Natural Resources (27 videos)

6.1: Earth's Atmosphere
1. Introduction to Atmosphere
2. Composition of Atmosphere
3. Layers of Atmosphere
4. Troposphere
5. Stratosphere
6. Mesosphere
7. Thermosphere
8. Depletion of Ozone
9. Effect of Ozone Depletion
10. Green House Effect
11. Effect of Global Warming
 
6.2: Environmental Pollution
1. Pollutants
2. More on Pollutants
3. Sources of Air Pollutants
4. Water pollutents,Oxygen-Demanding Or Industrial Effluents
5. Agricultural Water Pollutants
6. Water Pollutants - Synthetic Organic Compounds
7. Nutrient and Thermal Water Pollution
8. Effects of Water Pollution
 
6.3: Minerals and Fossil Fuels
1. Coal
2. Petroleum
3. Natural Gas
4. Minerals
5. Advantages of Recycling
 
6.4: Agriculture and Crops of Pakistan
1. Cereal Crops, Poultry, Dairy
2. Cereal Crops
 
6.5: Wildlife and National Parks
1. Endangered Species
 
6.6: Effects of Rising Population in Pakistan
(No vidoes available yet. Still under development.)
 

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