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what are the atmospheric layers
Bottom to Top: Troposphere, Stratosphere, Mesosphere and Thermosphere
what is the ozone layer and what does it do
a layer in the stratosphere (at approximately 20 miles) that contains a concentration of ozone sufficient to block most ultraviolet radiation from the sun
where is ozone good and where is ozone bad and why?
Good in the stratosphere
it absorbs UV-B and UV-C radiation
prevents skin cancer and cataracts
bad in the troposphere
respiratory irritant and damages plant tissue
what is the main cause of ozone depletion, what is it, what is a way to reduce it
Chloroflorocarbons or CFC's -refrigerant chemical and propellants in aerosol containers
Ways to reduce it
Montreal Protocol- global agreement to reduce CFC's out of production
Replace with HCFC's (temporary solution)
where are some places where natural ozone depletion occur the most and when?
Antartica in the spring during August and October
Arctic - January through April