Dirty foam on the water and the seashore, eutrophication, pollution of the reservoir, ecological problem

Name: Dirty foam on the water and the seashore, eutrophication, pollution of the reservoir, ecological problem
Uploaded: 2019-02-11
Duration: 27 s
Channel: hydrobiolog
Description: Dirty foam on the water and the seashore, eutrophication, pollution of the reservoir, ecological problem