Atmospheric Carbon and Ozone Review

Where is the Ozone Hole?

• The hole is found in Antarctica.

• The hole is found in the Arctic.

• The hole is found in the Pacific Ocean.

• The hole is found in the Amazon Rainforest.

Correctly label each layer of the atmosphere

a

b

d

c

e

Stratosphere

Troposphere

Mesosphere

Thermosphere

Exosphere

How large was the peak or maximum "ozone hole" in 2015?

• 28.2 million square km

• 10.9 million square miles

• 6000 km in diameter

• All of the above

Which months in 1996 had ozone levels below 220 Dobson Units over the Antarctic?

• August, September, October, and November

• August and November only

• September only

• September and October only

Which months had an ozone hole over the Antarctic in 2006?

• Only June

• Every month other than June

• September, October, November

• December, January, February

Starting in the early 2000s, where did an ozone layer hole appear besides the Antarctic? (one word)

Answer:

Select which of the following are uses for CFCs:

• Accelerants

• Fire extinguishers

• Medications (i.e. inhalers)

• Refrigerants

Why is ozone depletion worse in Antarctica?

• Atmospheric wind patterns blow most CFCs to Antarctica

• Science stations in Antarctica use 70% of the world's CFCs

• CFCs react with ozone and cause ozone depletion

• HFC lobbyists needed to find a way to make more money

Why does ozone depletion reach its maximum in September and October (and sometimes November and December)?

• Cold temperatures plus sunlight allow chlorine gas to be split into chlorine atoms and react with ozone

• Cold temperatures and the lack of sunlight in these months stops chlorine from reacting with itself, allowing it to attack ozone instead

• Human CFC use reaches its peak in these months

• False: ozone depletion reaches its maximum in June

Place the steps for ozone formation in the stratosphere in order:

• Oxygen (O2) reacts with UV light

• Ozone (O3) is formed

• O2 is split into two oxygen atoms

• An oxygen atom (O) reacts with molecular oxygen (O2)

Tags

NGSS.MS-PS1-5