Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

[Q]: Question: What is lava called before it reaches the surface of the earth? Answer: magma
[A]: Minerals form as magma or lava cools.

[Q]: Question: What two factors influence the pressure of fluids? Answer: depth and density
[A]: Two factors influence the pressure of fluids. They are the depth of the fluid and its density.

[Q]: Question: In binary fission how many times does a cell split? Answer: two
[A]:
In binary fission, a cell splits in two. First, the large circular chromosome is copied. Then the cell divides to form two new daughter cells. Each has a copy of the parent cell's chromosome.