3 most predominate reasons are....
The buoyancy of the magma
The pressure from the exsolved gasses in the magma
The injection of a new batch of magma into an already filled magma chamber
Answer:
<h3>I can answer the question of the similarities between Africa and South America. The similarities are that both South America and Africa have many forests, including rainforests. Both America and Africa have similar animals. </h3>
The answer is Tony Zale. I hope this helps.