Fact 1: Organisms cluster around hydrothermal vents in the ocean floor.

Fact 2: Largest of the oceans on Earth is the Pacific Ocean .

Given the two facts above, answer the question "what floor do organisms cluster around hydrothermal vents on?" with the following options: 
- Pacific
 - small ponds
 - ground
 - limestone
 - sandstone
 - loose soil
 - atmosphere
 - crust


 

 Pacific        