How is ozone gas produced in the stratosphere?
- ABy the action of $UV$ radiation on $O_2$ molecules.
- BBy the reaction of $O_2$ with $N_2$.
- CBy the combustion of fossil fuels.
- DBy the reaction of $O_2$ with $CO_2$.
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Mention the type of pollutants of tropospheric pollution.
Easy
View SolutionMatch List-$I$ with List-$II$ :
List-$I$ (Species) List-$II$ (Maximum allowed concentration in ppm in drinking water) $A$. $F^{-}$ $I$. $< 50 \, ppm$ $B$. $SO_{4}^{2-}$ $II$. $< 5 \, ppm$ $C$. $NO_{3}^{-}$ $III$. $< 2 \, ppm$ $D$. $Zn$ $IV$. $< 500 \, ppm$
| List-$I$ (Species) | List-$II$ (Maximum allowed concentration in ppm in drinking water) |
| $A$. $F^{-}$ | $I$. $< 50 \, ppm$ |
| $B$. $SO_{4}^{2-}$ | $II$. $< 5 \, ppm$ |
| $C$. $NO_{3}^{-}$ | $III$. $< 2 \, ppm$ |
| $D$. $Zn$ | $IV$. $< 500 \, ppm$ |
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View SolutionWhich one of the following depletes the ozone layer?
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List-$I$ List-$II$ $(1)$ Vegetable waste $(A)$ Takes $3$ to $5$ months for natural decomposition $(2)$ Plastic materials $(B)$ Takes $7$ to $10$ months for natural decomposition $(3)$ Agricultural waste $(C)$ Remains in original form for decades without decomposition
| List-$I$ | List-$II$ |
|---|---|
| $(1)$ Vegetable waste | $(A)$ Takes $3$ to $5$ months for natural decomposition |
| $(2)$ Plastic materials | $(B)$ Takes $7$ to $10$ months for natural decomposition |
| $(3)$ Agricultural waste | $(C)$ Remains in original form for decades without decomposition |
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