World Ozone Day

What absorbs ultraviolet rays in the atmosphere?

• troposphere
• stratosphere
• ozone layer
• greenhouse gases

Which of these sets of three items produce CFCs

• cars, factories, and fire extinguisher

• spray cans, plastic bottles, cars

• spray cans, refrigerant, cars

• Aerosol, refrigerator, Air conditioners

Tags

NGSS.MS-PS1-3

How many oxygen atoms does a molecule of ozone contain?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Where is the "GOOD" ozone located?

• troposphere

• stratosphere

• mesosphere

• thermosphere

What chemical is responsible for breaking up the ozone?

• Chlorofluorocarbons (CFCs)

• Carbon Dioxide

• Nitrogen

• Oxygen

Tags

NGSS.MS-PS1-3

NGSS.MS-PS1-2

This protects us from harmful UV rays from the sun

• Troposphere
• Stratosphere
• Greenhouse Effect
• Ozone Layer

The Montreal Protocol banned the use of CFCs. What do they hope this will do for the ozone layer?

• Deplete it completely

• Make the ozone hole smaller

• Make the ozone hole larger

• Thin the layer to allow more gas to escape

Which are effects of UV radiation on living organisms? select ALL that are true.

• It can denature proteins in the eye and cause foggy vision or blindness.

• It can cause mutation in DNA.

• It can disrupt food chains by causing harm to photosynthetic organisms.

• It can stimulate the production of vitamin D.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS3-1

Innermost layer of the atmosphere. It contains about 75% of the mass of earth’s air and extends about 17 kilometers above sea level

• Stratosphere

• Troposphere

• Ozone Layer

• Mesosphere

Second layer of the atmosphere, extending about 17-48 kilometers above the earth’s surface. It contains a layer of gaseous ozone, which filters out about 95% of the incoming harmful ultraviolet radiation emitted by the sun

• Mesosphere

• Troposphere

• Stratosphere

• Ozone