Pollution Index of Elk Lake Algae
Type of Algae
Pollution Index
(1 to 5)
Euglena 5
Oscillatoria 5
Scenedesmus 4
Chlorella 3
Question
One measure of the pollution level in freshwater is the algae pollution index. Values range from 1 (algae that live only in clean water) to 5 (algae that live in polluted water).
What is the ,begin emphasis,best,end emphasis, conclusion about the condition of Elk Lake?
Answer options with 4 options
A.
Elk Lake has a small amount of pollution because Chlorella algae can live in it.
B.
Elk Lake is polluted by the fertilizer runoff from nearby farms and golf courses.
C.
Elk Lake is a mature ecosystem because it has a high diversity of algae species.
D.
Elk Lake is polluted because it contains species of algae that live in polluted water.