Endosymbiosis
that is my explanation hopefully its right
the area of the square is: 100
the area of the circle is: 78.5
i THINK if you subtract it, it will be 21.5
It is 19.3g/cm^3. To find density, you divide mass by volume, or d=m/v
That students who study make better grades than those who do not.
There are seven plate tectonics on Earth.
