*HELP* Multiple choice~ What is believed to be the major cause of depletion of the ozone shield?
B. sulfuric acid
C. CFCs
D. nitrates
Favorite Answer
“For over 50 years, chlorofluorocarbons (CFCs) were thought of as miracle substances. They are stable, nonflammable, low in toxicity, and inexpensive to produce. Over time, CFCs found uses as refrigerants, solvents, foam blowing agents, and in other smaller applications. Other chlorine-containing compounds include methyl chloroform, a solvent, and carbon tetrachloride, an industrial chemical. Halons, extremely effective fire extinguishing agents, and methyl bromide, an effective produce and soil fumigant, contain bromine. All of these compounds have atmospheric lifetimes long enough to allow them to be transported by winds into the stratosphere. Because they release chlorine or bromine when they break down, they damage the protective ozone layer. The discussion of the ozone depletion process below focuses on CFCs, but the basic concepts apply to all of the ozone-depleting substances (ODS).”
greenhouse effect and the ozone layer r 2 completely different things.
Greenhouse effect is all the greenhouse gases creating a layer around the earths atmosphere, causing the earth to heat up…the ozone layer protects the earth from UV rays. This hole in the ozone layer is found near Antarctica and a major factor of this is CFCs or Chloroflourocarbons … they come from fridges 😀
BTW the answer is C
have u ever heard of the green house effect
thats why
is toxic and is puting holes in co2 is what comes out of cars why do think theres been a hybird crisis
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