Answer Happy

Due to run-off excess fertilizers
Due to water pollution
Due to lack of fertilizers
What is oxygen depleting waste?
Organic waste that can be decomposed by aerobic bacteria
Organic waste that can be decomposed by aquatic algae
Organic waste that cannot be decomposed by bacteria
Organic waste that can be decomposed by viruses
Toxicology is
the science that studies poisons
the science that studies non toxic substances
the science that studies the effect of harmful substances on
human beings
none of the above