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About Carbon Dioxide Video Lecture | Science for Class 6

FAQs on About Carbon Dioxide Video Lecture - Science for Class 6

1. What is carbon dioxide and why is it important?

Ans. Carbon dioxide (CO2) is a colorless gas that is naturally present in the Earth's atmosphere. It is produced by various natural processes, such as respiration and volcanic eruptions. Carbon dioxide plays a crucial role in maintaining the Earth's temperature by trapping heat from the sun, which is known as the greenhouse effect. Without the greenhouse effect, the Earth would be too cold to support life.

2. How does carbon dioxide contribute to climate change?

Ans. Carbon dioxide is one of the main greenhouse gases responsible for climate change. When released into the atmosphere through human activities like burning fossil fuels and deforestation, carbon dioxide accumulates and traps more heat from the sun. This leads to an increase in global temperatures, causing changes in weather patterns, rising sea levels, and other adverse impacts on the environment and ecosystems.

3. What are the sources of carbon dioxide emissions?

Ans. Carbon dioxide emissions come from various sources, both natural and human-induced. Natural sources include volcanic activity, respiration by plants and animals, and decay of organic matter. Human activities, such as burning fossil fuels like coal, oil, and natural gas for energy, deforestation, and industrial processes, are major contributors to carbon dioxide emissions.

4. How can we reduce carbon dioxide emissions?

Ans. There are several ways to reduce carbon dioxide emissions. One effective method is to transition to renewable energy sources like solar, wind, and hydroelectric power, which do not produce carbon dioxide when generating electricity. Energy conservation and efficiency measures can also help reduce emissions. Additionally, afforestation, reforestation, and sustainable land management practices can aid in capturing and storing carbon dioxide from the atmosphere.

5. What are the potential consequences of high carbon dioxide levels in the atmosphere?

Ans. High carbon dioxide levels in the atmosphere can have significant consequences. This includes global warming, leading to more frequent and severe heatwaves, droughts, and extreme weather events like hurricanes. Rising carbon dioxide levels can also cause ocean acidification, harming marine life and coral reefs. Additionally, changes in ecosystems and loss of biodiversity can occur due to the disruption of natural habitats caused by climate change.

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Sep 05, 2025 Last updated

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