Welcome to our wiki space this is a project that our teacher is letting us do. I hope you can find everything that you need.
Andrew P Ethan
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lake with mountian
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Great Lakes
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map of earth with lakes






The Sierra Nevada range has the wetter portions of the nation, with average rainfall exceeding 30 inches (76 cm) per year. The climates vary a lot. The northern and polar lakes are mostly the same all over the world. Temperature varies in ponds and lakes seasonally. During the summer, the temperature can range from 4° C near the bottom to 22° C at the top. During the winter, the temperature at the bottom can be 4° C while the top is 0° C. In between the two layers, there is a narrow zone called the thermo cline where the temperature of the water changes quickly. During the spring and fall seasons, there is a mixing of the layers, usually due to winds, which results in a usual water temperature of around 4° C. This mixing also circulates oxygen throughout the lake. Of course there are many lakes and ponds that do not freeze during the winter, thus the top layer would be a little warmer.


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