In an experiment, a scientist compares the effect of adding acid rain to
samples taken from two different lakes. the scientist observes that ten drops
of acid rain added to water taken from lake minnetonka in southern
minnesota does not change the ph from 7.5, but ten drops of acid rain added
to water taken from upper kintla lake in glacier national park causes the ph
to change from 7.5 to 5.2.
which conclusion is supported by these observations?
o
a. both lake minnetonka and upper kintla lake contain a buffer,
o
b. upper kintla lake contains a buffer, but lake minnetonka does
not
o
c. neither lake minnetonka nor upper kintla lake contains a buffer
o
d. lake minnetonka contains a buffer, but upper kintla lake does
not