This map shows the enrollment ratio of the state university freshman. What type of map is this?

A. political
B. dot-density
C. special purpose
D. choropleth

Answergranulation;

The correct answer is:   [b]:   "physical systems" .

When a lake, river or other aquatic  system  becomes  eutrophic, it can have serious negative effects on other organisms like fish, birds and even people.if an algal bloom is so bad that it causes wide-spread death  in  the  water, the organisms that die will all sink to the bottom and start to decompose.

We can not answer this question because we cannot see the graph,sorry< 3