egg (female) and sperm ( male)
Answer:
CORRECTION C.) EXCRETION
////B.) Digestion is the correct answer
The answer is A, with no place to live, they either died or moved to other places.
Dissolved gasses under lots of pressure are being trapped in the magma, these expanding gases and steam are what causes it. Also, because of this heat getting more and more hotter, and the volume being lost due to the gasses over time the lava bursts out.