Will the dam stops water and fish to pass thru so it kinda messes with the ecosystem(?)
Oceanography is the study of the ocean and the cryosphere are the portions of the earth that are just frozen water (ice). When fresh water glaciers melt, they lower the salt levels in the ocean and and oceanographer studies that and makes sure that it wont have too much of an effect. The cryosphere plays a significant role in the global climate.
5 major threats to biodiversity, and how we can help curb them
Climate change. Changes in climate throughout our planet's history have, of course, altered life on Earth in the long run — ecosystems have come and gone and species routinely go extinct. ...
Deforestation and habitat loss. Image: Nelson Luiz Wendel / Getty Images. ...
Overexploitation. ...
Invasive species. ...
Pollution.
