How rivers are formed
A river is a form of water moving from a ______ elevation to a ____ elevation
High elevation to Low elevation
True or False: Mussels eat crabs.
False. Crabs eat Mussels.
Plants grow _____ in moving water.
A) Thicker
B.) Slower
C.) thinner.
D.) Faster
D.) Faster
River also means water is ______
Constantly moving
Plants and animals consume nutrients found in soil and then nutrients are then released back into the _________ .
Environment
Water turbidity is only used as the __________of microbial contamination
First indicator
Mayflies and caddisflies both place their larvae under stones especially in riffles. Why?
Because the bubbly water has high levels of oxygen for the larvae to survive.
Rivers generally start with ______ streams and then become ______as more and more water added to main streams.
A.) Smooth and rough
B.) Large and small
C.) Rough and smooth
D.) Small and large
D.) Small and large
Rivers needs 5 elements/compound to survive. What are they?
Water, Oxygen, Carbon, Phosphorus, and Nitrogen
Out of these four species, which species is likely to be a migratory species?
A.) Catfish
B.) Bluegill
C.) Alewife
D.) Freshwater bass
C.) Alewife
The two most common protozoans are _________and _________ in rivers
Giardia and Cryptosporidium