Question
Which of the following statements about Ozone is true?
The correct answer is
All of the options
Ozone is the major constituent of photochemical smog This statement is true as well. Stratospheric ozone is often called "good" ozone because of its protective role against UV radiation. Tropospheric or ground-level ozone is considered "bad" ozone because it is a pollutant that harms respiratory health, vegetation, and contributes to smog. Therefore, the correct answer is All of the options.
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Important Questions from Ozone Layer Depletion
- Which of the following is a catalytically inactive (or reservoir) molecule containing chlorine in stratosphere?
- Choose the correct statement(s)
A. O$_3$ in stratosphere is not completely effective in shielding us from UV-B
B. UV-A is biologically least harmful.
C. Chapman mechanism deals with only O$_3$ formation in stratosphere.
D. Sunscreen lotions either reflect or absorb or scatter UV-B and UV-A
E. UV-B helps in dissociation of O$_3$ molecule in stratosphere.
Choose the correct answer from the options given below. Ozone layer depletion is a major phenomenon in :
- With regard to ozone depletion over Antarctica, select the false statement :
- Atmospheric life times of CFCs is typically in the range :
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