Homework Help: Biology

Posted by mysterychicken on Tuesday, February 16, 2010 at 7:13pm.

29. CFCs are a problem because they
a. have been released in large quantities in the past
b. break down to reactive free chlorine atoms
c. attack ozone molecules in the upper atmosphere
d. all of the above
D?

10. Ozone depletion in the atmosphere
a. leads to the formation of acid precipitation
b. leads to a rise in chlorofluorocarbons
c. allows more harmful radiation from the sun to reach the earth
d. both b and c
D?

Thanks
-MC

Biology - bobpursley, Tuesday, February 16, 2010 at 7:16pm
29. OK
10. http://library.thinkquest.org/26026/Environmental_Problems/ozone_depletion_-_effects.html
Biology - mysterychicken, Tuesday, February 16, 2010 at 7:21pm
So 10 is just C?

-MC
Biology - bobpursley, Tuesday, February 16, 2010 at 7:23pm
Si, C
Biology - mysterychicken, Tuesday, February 16, 2010 at 7:26pm
Gracias!

PS>Why were we blocked yesterday?

Thanks!
-MC
Biology - bobpursley, Tuesday, February 16, 2010 at 7:35pm
I dont know anything about that.

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