CFC

Though CFC production has been curtailed, the threat to upper atmosphericozone continues because CFCs

• become harmless quickly.

• destroy ozone for only a short time.

• persist but stop destroying ozone.

• persist and continue to destroy ozone for decades.

Tags

NGSS.HS-ESS3-6

NGSS.HS-LS2-7

Which agreement allowed for a reduction, and eventual elimination, of CFC production and use?

• Montreal Protoccol

• Kyoto Protoccol

• Paris Agreement

• Minamata convention

Antarctica has more pronounced ozone destruction because... (choose all that apply)

• the global distillation effect moves CFCs there more than the Arctic.

• the stratospheric ice clouds are more pronounced there

• the stratospheric ice clouds are less pronounced there

• the circumpolar vortex is more pronounced there

Antarctic _____ has the ______ free CFC levels and ______ ozone levels.

• Antarctic WINTER has the LOWEST free CFC levels and HIGHEST ozone levels.

• Antarctic WINTER has the HIGHEST free CFC levels and LOWEST ozone levels.

• Antarctic SUMMER has the LOWEST free CFC levels and HIGHEST ozone levels.

• Antarctic SUMMER has the HIGHEST free CFC levels and HIGHEST ozone levels.

Tags

NGSS.HS-ESS3-6

NGSS.HS-ESS2-2

Which options are true for Stratospheric ozone? (select all that apply)

• CFCs are stable in the troposphere

• CFCs are unstable in the stratosphere

• Tropospheric O3 is a pollutant and Stratospheric O3 is a protectant

• O3 naturally absorbs UV and breaks apart

Tags

NGSS.HS-PS4-3

Which is NOT a result of the reduction in stratospheric ozone?

• reduced photosynthetic activity

• increased skin cancer

• increased likelihood of cataracts

• increased birth defects

What are CFCs primarily used for in industrial applications?

• Refrigerants

• Fertilizers

• Fuel additives

• Pesticides

Which of the following is a major environmental concern associated with CFCs?

• Global warming

• Ozone layer depletion

• Acid rain

• Deforestation

How do CFCs contribute to ozone layer depletion?

• By releasing chlorine atoms in the stratosphere

• By absorbing UV radiation

• By reacting with carbon dioxide

• By increasing greenhouse gas emissions

Which international agreement was established to phase out the use of CFCs?

• Kyoto Protocol

• Montreal Protocol

• Paris Agreement

• Basel Convention

Tags

NGSS.HS-ETS1-3