Class 8 Exam > Class 8 Videos > L2 : Factors Spoiling environment - Air Water Pollution, Science, Class 8
L2 : Factors Spoiling environment - Air Water Pollution, Science, Class 8 Video Lecture
FAQs on L2 : Factors Spoiling environment - Air Water Pollution, Science, Class 8 Video Lecture
| 1. What are the main causes of air pollution? |  |
Ans. The main causes of air pollution are industrial emissions, vehicular emissions, burning of fossil fuels, deforestation, and agricultural activities.
| 2. How does water pollution occur? | |
Ans. Water pollution occurs through the discharge of industrial waste, sewage, agricultural runoff, and improper disposal of chemicals and plastics into water bodies.
| 3. What are the effects of air pollution on human health? | |
Ans. Air pollution can lead to respiratory problems such as asthma and bronchitis, cardiovascular diseases, allergies, and even lung cancer. It can also worsen existing health conditions and reduce overall life expectancy.
| 4. What are the sources of water pollution? | |
Ans. Sources of water pollution include industrial waste, sewage and wastewater, dumping of chemicals and plastics, agricultural runoff containing pesticides and fertilizers, and oil spills.
| 5. How does air pollution affect the environment? | |
Ans. Air pollution can harm the environment by causing acid rain, damaging vegetation, depleting the ozone layer, contributing to global warming, and disrupting ecosystems. It also affects the quality of soil and water bodies.
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Nov 15, 2024 Last updated |
L2 : Factors Spoiling environment - Air Water Pollution, Science, Class 8 for Class 82024 is part of Class 8 preparation. The notes and questions for L2 : Factors Spoiling environment - Air Water Pollution, Science, Class 8
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