which of the following could result from an algal bloom in a river?
a). the algae purify the water
b). the local plants produce flowers early
c). fish and other aquatic life die off
d). plant and animal populations increase
2. of the following, which is most likely to happen after a farmer sprays his crops with pesticides?
a). the crops die
b). insect population increases
c). the soil dries up and blows away
d). a neighbor's well tests positive for pesticides