You are presented with the question "Organisms cluster around formations in the ocean floor powered by the heat of submarine what" and the following answer choices: 
- forces
 - volcanoes
 - light energy
 - allow growth
 - thrust
 - waves
 - mines
 - earthquakes

Now knowing that organisms cluster around hydrothermal vents in the ocean floor and hydrothermal vents are powered by the heat of submarine volcanoes, choose the best answer.


 

  volcanoes       