Ecosystems are in danger from all of the following except __________.
a. increased thermal pollution
b. decreased eutrophication
c. increased air pollution
d. oil spills
The greatest threat to any life form and the biosphere of the earth is pollution. Pollution is the contamination and deleterious effects of various biogeochemical changes that is caused by mostly man-made processes. This can be exhibited through land, air or water.
