In which of the following layers of atmosphere, is there more thickness of the ozone layer ?
Correct answer: B. stratosphere
- A. troposphere
- B. stratosphere
- C. mesosphere
- D. photosphere
Explanation
This layer sits above the troposphere and extends roughly from 15 to 50 kilometers above Earth's surface. It contains the majority (around 90%) of the ozone, forming the protective "ozone layer" that absorbs harmful ultraviolet (UV) radiation from the Sun.Now we'll look at why other options are incorrect.(a) Troposphere: This is the lowest layer of the atmosphere, closest to Earth's surface. Although some ozone exists here, it's formed through secondary reactions by pollutants interacting with sunlight and is harmful to our health..(c) Mesosphere: This layer above the stratosphere (50-85 km) has very little ozone present due to decreasing oxygen availability at higher altitudes.(d) Photosphere: This is not even part of Earth's atmosphere. It's the visible surface layer of the Sun where light and heat are generated.(Environmental chemistry,Components of Environment)
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