Multiple choice

The layer of the water in the oceans and lakes that separates the warmer surface layer from the deeper colder layer is called:

  1. epilimnion

  2. hypolimnion

  3. thermocline

  4. hypothermia
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The thermocline is the transition layer in a body of water where the temperature changes more rapidly with depth than it does in the layers above or below. It effectively separates the warm, well-mixed surface layer from the much colder deep-water layer.

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