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

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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