Answer:
An extreme version of scoria occurs when volatile-rich lava is very quickly quenched and becomes a meringue-like froth of glass called pumice. Some pumice is so full of vesicles that the density of the rock drops low enough that it will float
Explanation:
From the information above i believe the answer is C. Hope this helped! have a good day
The answer to ur questions is heterotrophic
An organ is when two or more tissues come together to preform a job
Answer:
The aim of the muscles in the heart is to transport blood,which is the fluid. As for protection the pericardium fluid is responsible
