deep lake in a region with four distinct seasons may have developed the following temperature profile...

deep lake in a region with four distinct seasons may have developed the following temperature profile (from lake surface to lake bottom) except:

	A.	20⁰C – 5⁰C (Summer)
	B.	15⁰C – 15⁰C (Fall)
	C.	4⁰C – 0⁰C (Winter)
	D.	10⁰C – 10⁰C (Spring

Expert Solution

Correct Answer: B. 150⁰C – 150⁰C (Fall)

Hi don't panic actual temperature are largely differ from these values. Just this question is to test our knowlege on thermal stratification of lakes only. Really water exists at 200⁰C!!!!!!!!!!!!!

Changes in the temperature profile with depth within a lake system is called thermal stratification. In the spring, after the ice melts on a lake, the lake water is generally the same temperature from the surface to the bottom. Wind allows circulation and mixing of the lake water. Surface water can be pushed to the lake bottom and bottom water can rise to the surface. 100⁰C – 100⁰C (Spring) is correct one.

A volume of water is heaviest at 4 degrees Celsius (39.2 degrees F). That is just above freezing. The same volume of water becomes lighter as it gets warmer. So in a lake, warm lake water is at the top and the colder water is at the bottom (except in winter the middle one is 0⁰C & bottom is 4⁰C). 40⁰C – 0⁰C (Winter) is correct one.

As the sun continues to heat the water at the top, the difference in temperature between the top and bottom water becomes greater. Eventually there are 2 distinct layers, the epilimnion at the top and the hypolimnion at the bottom. Between these 2 layers is a third, less distinct, transition layer called the metalimnion.

Because of the temperature difference (and thus density difference) between the epilimnion and hypolimnion, they don’t typically mix together during the summer. It takes a major climactic event to accomplish this, though the lake will mix in the autumn as the surface water cools. 200⁰C – 50⁰C (Summer) is correct one.

Thank You So Much! Please Rate this answer as you wish.

queen_honey_blossom answered 2 years ago

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