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Air, Water & Weather Video Lecture | Science Olympiad Class 4

FAQs on Air, Water & Weather Video Lecture - Science Olympiad Class 4

1. What is air pollution?

Ans. Air pollution refers to the presence of harmful substances in the air, such as pollutants, gases, and particles, that can have negative effects on human health, the environment, and the climate.

2. How does water pollution occur?

Ans. Water pollution occurs when pollutants, such as chemicals, industrial waste, sewage, or agricultural runoff, are discharged into bodies of water, such as rivers, lakes, and oceans, causing harm to aquatic life and ecosystems.

3. What are the main factors that contribute to climate change?

Ans. The main factors contributing to climate change include the release of greenhouse gases, such as carbon dioxide and methane, from human activities like burning fossil fuels, deforestation, and industrial processes.

4. How does weather forecasting work?

Ans. Weather forecasting involves collecting data from various sources, including satellites, weather stations, and weather balloons, and analyzing this data using computer models to predict future weather conditions, such as temperature, precipitation, and wind patterns.

5. What are the effects of global warming on the planet?

Ans. Global warming leads to rising temperatures, melting ice caps and glaciers, sea-level rise, more frequent and intense extreme weather events, changes in precipitation patterns, and the loss of biodiversity, posing significant threats to human societies and ecosystems.

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Sep 04, 2025 Last updated

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53 videos|76 docs|59 tests

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