Which of the following factors does not vary between a fast-following river and a pond that receives no water input?
a. oxygen levels
b. salt concentration
c. temperature
d. fish species
I think possibly b.
Ms. Sue?
You are correct it is B
it is b
:| why do people feel the need to say that stuff? and impersonate?
will someone stop using my account name...
fr your offended by that its just some humor
....Mom, pick me up kids are making inappropriate jokes again ;-;
oh yeah put it right there.
harder! harder!