Which of the following processes would explain ozone losses in the atmosphere ? When ozone is exposed to 1. CFCs and UV radiation. 2. long winter circumpolar winds to form ice crystals. 3. singlet oxygen atom and chlorine monoxide. Select the correct answ

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Q: 93 (CAPF/2011)

Which of the following processes would explain ozone losses in the atmosphere ? When ozone is exposed to
1. CFCs and UV radiation.
2. long winter circumpolar winds to form ice crystals.
3. singlet oxygen atom and chlorine monoxide.
Select the correct answer using the code given below ;

question_subject: 

Science

question_exam: 

CAPF

stats: 

0,19,50,36,8,9,16

keywords: 

{'ozone losses': [0, 0, 0, 1], 'ozone': [3, 0, 3, 5], 'atmosphere': [1, 1, 4, 7], 'chlorine monoxide': [0, 0, 0, 1], 'singlet oxygen atom': [0, 0, 0, 1], 'uv radiation': [0, 0, 0, 2], 'long winter circumpolar winds': [0, 0, 0, 1], 'processes': [4, 0, 5, 9], 'cfcs': [1, 0, 0, 2]}

The correct answer is option 1: 1, 2 and 3.

Ozone losses in the atmosphere can occur due to various processes.

1. CFCs (chlorofluorocarbons) and UV radiation: CFCs are synthetic compounds that were commonly used in products like aerosols and refrigerants. When released into the atmosphere, CFCs can slowly rise to the stratosphere where they are broken down by UV radiation, releasing chlorine atoms. These chlorine atoms then react with ozone molecules, causing ozone depletion.

2. Long winter circumpolar winds to form ice crystals: During the winter months in polar regions, high-altitude clouds form in the stratosphere. These clouds contain ice crystals that provide a surface for chemical reactions to occur. These reactions can lead to the formation of substances that destroy ozone.

3. Singlet oxygen atom and chlorine monoxide: Singlet oxygen atoms can react with ozone, leading to its destruction. Chlorine monoxide is a compound consisting of a chlorine atom and an oxygen atom. It can also react with ozone, depleting its concentration in the atmosphere.

Therefore, all three processes (CFCs and UV radiation, long winter circumpolar winds to form ice crystals, and sing