Multiple choice

Ocean thermal energy can be utilised when the temperature difference between water at the surface and water at depths up to 2 km is ______.

  1. 10° C or more

  2. 15° C or more

  3. 20° C or more

  4. None of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ocean thermal energy can be utilised when the temperature difference between water at the surface and water at depths of up to 2 km is 20o to 25oC.