Science Grade 8
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4.0 Introduction to Chapter 4
4.1 Air Pollutants and Their Sources
4.1 Air Pollutants and Their Sources
4.1.1 Properties of Air Pollutants and Their Effects on Human Organ System
4.2 Effects of Human Activities on Environment
4.2 Effects of Human Activities on Environment
4.2.1 Greenhouse Effect
4.2.2 Ozone Depletion
4.2.3 Global Warming
4.2.4 Acid Rain
4.2.5 Deforestation
4.2.6 Lack of Natural Resources
4.3 Conservation of Resources
4.4 Saving the Earth
4.4 Saving the Earth
4.4.1 Solid Waste Management
4.4.2 Environmental campaigns
4.4.3 Responsibility for All
