A very large area of sea is called an ocean. The water at the surface of an ocean gets heated by the heat of the sun and against a higher temperature than the colder water at deeper levels in the ocean. The energy available due to the difference in the temperature of water at the surface of the ocean and at deeper levels is called ocean thermal energy (OTE). The devices used to harness ocean thermal energy are called Ocean Thermal Energy Conversion power plants (or OTEC power plants).
1. A very large area of sea is called ..........
a. Ocean
b. Reservoir
c. Pond
d. Lake
2. There is always a temperature difference between the water at the surface of ocean and at deeper levels.
a. TRUE
b. FALSE
3. The energy available due to the difference in the temperature of water at the surface of the ocean and at deeper levels is called ...............
a. Optical Thermal Energy
b. Ocean Thermal Energy
c. Ocean Temperature Energy
d. None of these
4. Expand OTEC power plants.
a. Optical Thermal Energy Conversion
b. Ocean Thermal Energy Conversion
c. Ocean Thermal Energy Conversion
d. None of these
5. A temperature difference of 10°C (or more) between the surface water of ocean and deeper water is needed for operating OTEC power plants.
a. TRUE
b. FALSE
