Question

In which of the following forms is energy available in the oceans?

• A. Tidal energy
• B. Wave energy
• C. Oceanic thermal energy
• D. All of these

Hint:

Ocean energy is renewable and pollution-free but still under development due to high costs and limited technology.

Answer 1

The Correct Option is D

Step 1: Conceptual Understanding:
Oceans cover about 70% of the Earth's surface and store a vast amount of energy in different forms. Scientists have developed technologies to harness these various forms of ocean energy. Step 2: Analysis of Options:
Tidal energy: Produced due to gravitational attraction of the Moon and the Sun, which creates tides. By building tidal barrages, this energy can be converted into electricity.
Wave energy: Generated by wind blowing across the surface of the oceans. Wave energy converters are designed to capture and transform this motion into electricity.
Oceanic thermal energy (OTEC): The temperature difference between warm surface water and cold deep water in tropical oceans can be used to generate electricity.
Step 3: Detailed Explanation:
Since all three (tidal, wave, and ocean thermal) are available in oceans, energy can be harnessed in multiple ways. Therefore, the correct option is all of these.
Step 4: Final Answer:
The forms of energy available in oceans are Tidal energy, Wave energy, and Oceanic thermal energy, i.e., All of these.