Using the graph below, at what depth does the thermocline begin?

a line graph relating ocean depth to water temperature. at 0 meters, temperature is approximately 27°c. at 50 meters, temperature is approximately 24°c. at 100 meters, temperature is approximately 11°c. at 150 meters, temperature is approximately 8°c.

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0 meters
50 meters
100 meters
150 meters

The thermocline begins at 100 meters of depth.

Step-to-step explanation:-

Thermocline is a transition oceanic water layer between deep and surface water in which water temperature decreases rapidly with increasing depth.

From the given graph it cam be seen that at 100 meters the thermoline begins such that  the temperature drops from to .

Hence, the thermocline begins at 100 meters of depth.

it should be p1 v1 = p2 v2