Organisms cluster around hydrothermal vents in the ocean floor, and hydrothermal vents are powered by the heat of submarine volcanoes. Given these facts, organisms cluster around formations in the ocean floor powered by the heat of submarine what among the following options:
- forces
 - volcanoes
 - light energy
 - allow growth
 - thrust
 - waves
 - mines
 - earthquakes


 

  volcanoes       