fish will die
the amount of dissolved oxygen would decrease.
The oxygen content of a river or stream is likely to be highest at the source. The source of the river or stream is where it originates.
Because a river is always moving
Yes, it does!
Gilbert J. Farmer has written: 'Relations among various dissolved substances in the Big Falls headpond, Mersey River, Nova Scotia' -- subject(s): Water, Dissolved oxygen, Composition, Aluminum content
Civil engineers often have to do dissolved oxygen tests on lakes, streams, and other bodes of water. This is to monitor human effects on the river.
water gets dissolved into water by rushing water or rapids if there are trees or brush in the water it will help disolve the oxygen in to the water if there is a waterfall located somewhere in the stream or river that will desolve a lot of oxygen
It depends! On what you say? Well, as an example it depends on the temperature of the sea water. The colder the water the greater the amount of DO can be contained. It depends on where the sea water is located; e.g., sea water at the mouth of the Amazon River (or at the mouth of most any river emptying into the oceans) for the fresh water from the river dilutes the salt content of the sea water there.
I personally would expect the mountain stream to have more dissolved oxygen, because I know that oxygen dissolves better in cold water.
Oxygen is more soluble in fresh water than it is in sea water, therefore there is more dissolved oxygen in river water than sea water.
not much (actually, pretty much nothing) would be able to survive because the amount of oxygen and dissolved oxygen in a river or stream can greatly affect what can and can't survive in it. not much would be able to live if all they had to live off of and take in to their systems was carbon dioxide.
The speed of a river can affect its oxygen content. Faster-moving water tends to have higher oxygen levels because it can mix more easily with the air and absorb more oxygen. Slower-moving water may have lower oxygen levels as it is not able to mix as effectively.