Why would a biologist want to know the pH of a lake?

Question

What would be the expected pH value for a normal, healthy lake?
What could be a possible outcome if the lake pH was too high or too low?
What could cause a large change in a lake’s pH?

Please help! I need to get this done no later than today!

Answer 1

Why would a biologist want to know the pH of a lake?
To determine the acidity of it (helps determine what can live in the lake)

What would be the expected pH value for a normal, healthy lake?
7 neutral or a bit acidic

What could be a possible outcome if the lake pH was too high or too low?
loss of inhabitants (fish will die insects...)

What could cause a large change in a lake’s pH?
Acid rain, chem spill

Answer 2

Thank you so much! You're a lifesaver!!

Answer 3

I remember these type of Qs from chem class