Which of the following energy is produced from a non-sustainable source?
Thermal energy
Solar energy
Wind energy
Geo-thermal
Thermal energy is produced from a non-sustainable source(coal).
Which energy can be harnessed from sea ?
1. Tidal energy
2.Wave energy
3. Ocean thermal energy
4.Solar energy
5.Geo-thermal energy
Which of the following is ultimately not derived from the sun's energy (or solar energy) ? (a) wind energy (b) nuclear energy (c) biomass energy (d) ocean thermal energy