Why are big lakes cleaner then small lakes??

Question

Example why is Lake Michigan cleaner then the smaller lakes in my town?? Thanks!!

Answer 1

It depends on what you mean by clean. Many mirky lakes are not polluted by chemicals, but are eutrophic lakes. They may have large amounts of algae growing/dying, low oxygen levels that do not support fish because the plants are taking it. How did the lake form? is it a man made lake? sometimes agricultural lakes are formed to give livestock drinking water (and collect waste runoff).

Another thing that varies by size is how the lake survives the winter. Large lakes are deep enough that the water pressure with depth prevents the water from freezing, the waters in the lake turn over during the freezing process (even if it's just the surface) this helps mix the water bringing oxygen to the depths of the lake where fish survive the winter. Smaller lakes may freeze solid..killing all fish life...and they are an important part of the ecosystem (eating the algae and keeping it in check)..whith out them you are more likely to have an eutrophic lake.

Any lake may be polluted, and polluted waters (and fish) may appear clean. Mirky waters are not necessarily polluted.

Answer 2

Man-made pollution does not affect a big lake as its contribution is negligible when compared to small lakes.Whenever there is rain, the big lakes receive more fresh water,because of their large surface area,reducing the percentage of pollution.Moreover the depth will be usually more for big lakes which makes them look cleaner as the undissolved pollutants will go deep into the water and settle at greater depths .

Answer 3

Most of it has to do with the amount of water the lake has. If you put a teaspoon of salt in a cup of water and stir it in, you will taste it. If you put a teaspoon of salt in a gallon of water and stir it, you will not taste it. the same rule goes with lakes and pollution, if you have a small lake with the same amount of pollution as a big lake, you will see much less pollution in the big lake because there is more water to dilute the pollution and distribute it far apart.

Good day

Answer 4

Lake michigan has more water...
water is the key to everything...

if you put a penny into a glass of water, and then put another penny into a fish tank.... act like the penny is pollution, bacteria, and anything that isnt supposed to be in water...
It is still there, but it doesnt seem as much...

Also, water has a high heat capacity, so heat doesnt make as much bacteria grow in the larger bodies of water...

Answer 5

Also, a shallow lake will get more wave action to disturb the bottom. There is more bottom surface area and shore area on the smaller lakes.

Answer 6

cause there is more water to polute and it doesnt show as much dirt

Answer 7

they are not. they have the same amount, bigger ones just hide it more..