Class 3 Exam > Class 3 Videos > Our Environment
Our Environment Video Lecture - Class 3
FAQs on Our Environment Video Lecture - Class 3
| 1. What are the major causes of air pollution? |  |
Ans. The major causes of air pollution include vehicle emissions, industrial activities, burning of fossil fuels, deforestation, and agricultural practices.
| 2. How does water pollution impact marine life? | |
Ans. Water pollution can have severe impacts on marine life. It can lead to the depletion of oxygen levels in water, making it difficult for aquatic organisms to survive. It can also contaminate their food sources, disrupt their reproductive cycles, and cause diseases.
| 3. What are the effects of deforestation on the environment? | |
Ans. Deforestation has several negative effects on the environment. It leads to the loss of biodiversity, disrupts ecosystems, contributes to climate change by reducing carbon sinks, increases soil erosion, and can result in the loss of livelihoods for local communities.
| 4. How can individuals contribute to reducing plastic pollution? | |
Ans. Individuals can contribute to reducing plastic pollution by adopting sustainable practices such as using reusable bags, bottles, and containers, recycling plastic waste, avoiding single-use plastic items, and supporting initiatives that promote the use of eco-friendly alternatives.
| 5. What are the consequences of soil erosion? | |
Ans. Soil erosion can have significant consequences on the environment and agriculture. It leads to the loss of fertile topsoil, reduces soil quality and productivity, increases the risk of flooding, and contributes to sedimentation in water bodies, affecting aquatic ecosystems.
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Sep 11, 2025
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