What principle is shown by the usefulness of O₃ in the stratosphere and its harmful effect in the troposphere?
Answer and explanation
Correct answer: The effect of an atmospheric substance can depend on its location
The governing principle is that concentration, altitude and environmental context determine an atmospheric substance’s effect. Stratospheric ozone absorbs harmful ultraviolet radiation and protects life, whereas tropospheric ozone is a reactive pollutant that can irritate lungs and damage plants. Therefore option A is correct; the other choices wrongly assume identical effects or deny basic atmospheric composition.
Frequently asked questions
What is the correct answer to this question?
The effect of an atmospheric substance can depend on its location
Why is this the correct answer?
The governing principle is that concentration, altitude and environmental context determine an atmospheric substance’s effect. Stratospheric ozone absorbs harmful ultraviolet radiation and protects life, whereas tropospheric ozone is a reactive pollutant that can irritate lungs and damage plants. Therefore option A is correct; the other choices wrongly assume identical effects or deny basic atmospheric composition.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
