12 Questions
What is the primary function of ozone at the higher levels of the atmosphere?
To shield the earth's surface from ultraviolet radiation
How is ozone formed at the higher levels of the atmosphere?
As a result of UV radiation acting on oxygen (O2) molecules
What has been linked to the decrease in the amount of ozone in the atmosphere since the 1980s?
Synthetic chemicals like chlorofluorocarbons (CFCs)
What action was taken in 1987 to address the depletion of the ozone layer?
An agreement to phase out the use of CFCs
Which of the following is a non-biodegradable item?
Wood
Which of the following represents a food-chain?
Grass, fish and goat
Which of the following practices are environment-friendly?
All of the above
What is the phenomenon known as when chemicals accumulate in the human body, as mentioned in the text?
Bioaccumulation
What is the impact of removing all the organisms in one trophic level?
The impact will vary based on the specific ecosystem
Why do food grains, vegetables, and fruits contain varying amounts of pesticide residues?
Because of biological magnification
What is the role of decomposers in the ecosystem?
Breaking down dead organic matter
What environmental problems are discussed in detail in the chapter?
Waste disposal and ozone layer depletion
Explore the crucial role of ozone in protecting the Earth from harmful ultraviolet (UV) radiation from the Sun. Learn about the significance of ozone at higher levels of the atmosphere and its impact on life forms, including its protection against skin cancer in human beings.
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