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Ozone and its Essential Role in Shielding the Earth

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Ozone and its Essential Role in Shielding the Earth

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Questions and Answers

What is the primary function of ozone at the higher levels of the atmosphere?

To shield the earth's surface from ultraviolet radiation (correct)

To help in the formation of chlorofluorocarbons

To absorb carbon dioxide from the atmosphere

To promote the growth of aerobic life forms

How is ozone formed at the higher levels of the atmosphere?

Through a chemical reaction with carbon dioxide

By combining hydrogen and oxygen molecules

As a result of UV radiation acting on oxygen (O2) molecules (correct)

Through the breakdown of water vapor

What has been linked to the decrease in the amount of ozone in the atmosphere since the 1980s?

Increased levels of volcanic activity

Synthetic chemicals like chlorofluorocarbons (CFCs) (correct)

The use of renewable energy sources

Reduced levels of oxygen (O2) in the atmosphere

What action was taken in 1987 to address the depletion of the ozone layer?

An agreement to phase out the use of CFCs Signup and view all the answers

Which of the following is a non-biodegradable item?

Wood Signup and view all the answers

Which of the following represents a food-chain?

Grass, fish and goat Signup and view all the answers

Which of the following practices are environment-friendly?

All of the above Signup and view all the answers

What is the phenomenon known as when chemicals accumulate in the human body, as mentioned in the text?

Bioaccumulation Signup and view all the answers

What is the impact of removing all the organisms in one trophic level?

The impact will vary based on the specific ecosystem Signup and view all the answers

Ozone and its Essential Role in Shielding the Earth

Choose a study mode

Podcast

Questions and Answers

What is the primary function of ozone at the higher levels of the atmosphere?

How is ozone formed at the higher levels of the atmosphere?

What has been linked to the decrease in the amount of ozone in the atmosphere since the 1980s?

What action was taken in 1987 to address the depletion of the ozone layer?

Which of the following is a non-biodegradable item?

Which of the following represents a food-chain?

Which of the following practices are environment-friendly?

What is the phenomenon known as when chemicals accumulate in the human body, as mentioned in the text?

What is the impact of removing all the organisms in one trophic level?

Why do food grains, vegetables, and fruits contain varying amounts of pesticide residues?

What is the role of decomposers in the ecosystem?

What environmental problems are discussed in detail in the chapter?

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