Class 12 Biology Environmental Issues Ozone Depletion in the Stratosphere

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Recognizing the deleterious effects of ozone depletion,an international treaty known as . . . . . . was signed at . . . . . . .

A
Montreal Protocol,Canada
B
Kyoto Protocol,Brazil
C
Earth Summit,Montreal
D
World Summit,South Africa

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Class 12 Questions

Class 12

Biology Questions

Chapter

Environmental Issues

Subtopic

Ozone Depletion in the Stratosphere

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The ozone layer in the upper atmosphere is depleted by $.........$.

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The presence of ozone $(O_3)$ in the atmosphere of Earth:

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The Montreal Protocol,which calls for appropriate action to protect the ozone layer from human activities,was passed in the year:

Good ozone and bad ozone are found in $.........$ respectively.

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Recognizing the deleterious effects of ozone depletion,an international treaty was signed at Montreal in $1987$ to control the emission of ozone-depleting substances,which is known as $.........$.

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