Question

where would you find the warmest waters? surface - mixed zone deep zone transition zone polar zone

Explanation:

The surface - mixed zone is the uppermost layer of water in a body of water (such as an ocean or a lake). It is directly exposed to sunlight. Sunlight is a major source of heat. As a result, the surface - mixed zone gets heated by the sun, making its waters warmer compared to the deeper zones (deep zone which is far from sunlight), the transition zone (which is between the surface - mixed and deep zone and has a temperature gradient), and the polar zone (which is in cold regions and has cold water).

Answer:

surface - mixed zone