Long Answers

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Last edited 25 days ago by Learn LoopHQ.

Chapter: 06. Air And Atmosphere

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Compare and contrast respiration and burning by stating at least three differences and two similarities between them.

Explain the phenomena of acid rain and global warming. What are their respective harmful effects?

Explain why air is considered a mixture of gases rather than a compound. Provide two evidences to support this.

Describe the experiment to show the presence of oxygen and nitrogen in air using a burning candle. What can be concluded from this activity?

What is the atmosphere, and how does gravity play a role in its existence around Earth? Explain its importance for life on Earth.

Describe the experiment to demonstrate that air is present everywhere, even in an seemingly empty glass. What observations confirm this?

Explain the process of rusting of iron. What are the necessary conditions for it to occur, and why is it considered a harmful process?

Explain the significance of carbon dioxide for plants and its other uses in our daily lives.

Define air pollution. List three common air pollutants and briefly describe two causes of air pollution.

How is the balance of oxygen and carbon dioxide maintained in nature? What human activities can upset this balance?

List and explain three effective measures that can be taken to prevent or reduce air pollution.

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