What is ozone layer depletion caused by?

Ozone Depletion. When chlorine and bromine atoms come into contact with ozone in the stratosphere, they destroy ozone molecules. One chlorine atom can destroy over 100,000 ozone molecules before it is removed from the stratosphere. Ozone can be destroyed more quickly than it is naturally created.

Which compounds are damaging to the Earth’s ozone layer quizlet?

Ozone depletion occurs when CFCs and other chlorine and bromine containing compounds reach the stratosphere and convert ozone to oxygen.

Which of the following are ozone depleting substances quizlet?

The primary provisions of the agreement phased out production and consumption of ozone-depleting substances, including chlorofluorocarbons, halons, carbon tetrachloride, and methyl chloroform, with the understanding that these compounds deplete the ozone in the stratosphere, which protects the planet from ultraviolet …

How do CFCs cause ozone depletion quizlet?

Ozone Depletion Ozone is destroyed by chlorofluorocarbons (CFC’s). CFC’s breakdown and release chlorine atoms which combine with O3 and break them down to O2. , CFCs drift slowly upward to the stratosphere, where they are broken up by ultraviolet radiation, releasing the chlorine that catalytically destroys ozone.

Which causes the depletion of ozone layer and greenhouse effect?

The depletion of the ozone layer is caused mainly by the increase in emissions of chlorine- and bromine-containing compounds like CFCs, halons, carbon tetrachloride, methyl chloroform and methyl bromide. Emissions of greenhouse gases can affect the depletion of the ozone layer through atmospheric interaction.

Which of the following is an ozone depleting substance?

chlorofluorocarbons (CFCs)
This page provides information on compounds recognized as ozone-depleting substances ( ODS. ODS include chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), halons, methyl bromide, carbon tetrachloride, hydrobromofluorocarbons, chlorobromomethane, and methyl chloroform.

What is the ozone layer and CFCs quizlet?

Earth is protected from the damaging affects of ultraviolet radiation (UV) by a layer of O3, or ozone. Ozone Depletion Ozone is destroyed by chlorofluorocarbons (CFC’s). CFC’s breakdown and release chlorine atoms which combine with O3 and break them down to O2.

How is ozone formed quizlet?

Ozone is formed in the stratosphere by the reaction of ultraviolet radiation striking an oxygen molecule. This results in the oxygen molecule splitting apart and forming atomic oxygen (O2 + hv = O + O). Atomic oxygen can now react with molecular oxygen to form ozone (O+O2 = O3).

How do CFCs cause ozone depletion?

Once in the atmosphere, CFCs drift slowly upward to the stratosphere, where they are broken up by ultraviolet radiation, releasing chlorine atoms, which are able to destroy ozone molecules. When sunlight returns in the spring, the chlorine begins to destroy ozone.