Ozone Hole Quiz

What is ozone?

• A type of oxygen molecule with two oxygen atoms

• A molecule made up of three oxygen atoms

• A gas we need to breathe on Earth

• A layer in the Earth's atmosphere

Where is the ozone layer located?

• In the troposphere

• In the stratosphere, 15 to 50 kilometers above Earth's surface

• At the surface level as smog

• In the mesosphere

What role does the ozone layer play in protecting Earth?

• It provides oxygen for us to breathe

• It acts as a shield, blocking most of the Sun's damaging ultraviolet (UV) rays

• It causes sunburns, cataracts, and skin cancer

• It damages plant DNA

What can happen if the ozone layer gets thinner?

• We will have more protection from ultraviolet light

• It will improve the air quality at the surface level

• We will have less protection from ultraviolet light, leading to sunburns, cataracts, and skin cancer

• It will increase the amount of oxygen we can breathe

What is the ozone hole?

• A literal hole over the South Pole

• A local thinning of the ozone layer caused by human-made chemicals

• A hole in the Earth's surface

• A region in the ocean depleted of oxygen

What are chlorofluorocarbons (CFCs)?

• Flammable chemicals used in refrigerators

• Non-flammable chemicals containing atoms of carbon, chlorine, and fluorine

• Substances used to increase the ozone layer

• Natural chemicals found in the stratosphere

Tags

NGSS.MS-PS1-3

How do CFCs lead to the destruction of the ozone layer?

• They increase the temperature of the stratosphere

• They react with oxygen to form ozone

• Sunlight breaks the CFCs into chlorine atoms that react with ozone and destroy it

• They form a protective layer that blocks UV rays

Tags

NGSS.HS-PS1-2

What is the name of the treaty that was created to stop the production of CFCs and protect the ozone layer?

• The Kyoto Protocol

• The Paris Agreement

• The Montreal Protocol

• The United Nations Framework Convention on Climate Change

How many molecules of ozone can a single chlorine atom from CFCs destroy?

• 10,000 molecules

• 50,000 molecules

• 100,000 molecules

• 1,000,000 molecules

Tags

NGSS.HS-PS1-2

According to the text, why is it still important to wear sunscreen when going outdoors?

• Because the ozone layer is completely healed

• Because the ozone layer cannot protect us from the Sun's most harmful rays

• Because the ozone layer can protect us from some of the Sun's most harmful rays

• Because the sunscreen industry requires support