I believe it is all of the above. So D.
When water molecules are broken down into hydrogen and oxygen molecules by a chemical reaction called electrolysis. Good Luck!!!
It is a <span>photosynthetic algae contained in reef building corals underwater</span>
The wildebeests will overpopulate the area and the ecosystem will be thrown off
The answer is <span>insect and pest populations decreased.
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DDT (dichlorodiphenyltrichloroethane) was used as an insecticide which is a substance used to kill insects. That resulted in decrease in insect and pest populations. It is a persistent and non-degradable insecticide, but as well organic pollutant readily accumulated to soils and consequently affects organisms.