What are 3 types of technologies have engineers developed to limit mass wasting negative effects?

Tidal currents and ocean waves that can be recovered using ocean thermal conversion technology.                          Infrared thermal radiation (more than half of the power provided by the Sun).                              A new nanophosphor-based electroluminesence lighting device that caters to the exact wavelengths of light required for photosynthesis in indoor, hydroponic agriculture.

Answer:   [b]:   "cultural" .