The answer is true.
If the water wasn't clean most would be sick.
It slooowwwwssss down... the colder the slower.
Plutons. It is 100% correct.
here is the definition of a pluton to prove my point:
<span>In geology, a pluton is a body of intrusive igneous rock, called a plutonic rock. It is crystallized from magma slowly cooling below the surface of the Earth. </span>
The two factors, Temperature and Pressure, have the greatest influence on the state of each of Earth's layers.
Hope I helped!