This magnet is the inner core. The inner core of the earth is made iron allowing it to have magnetic qualities. BTW, this is physical science. Just thought to let you know.
All you have to do is take the CGR (capita growth rate) percentage you just found and divide it by the number of years, months, etc. The complete formula for annual per capita growth rate is: ((G / N) * 100) / t, where t is the number of years.
I believe that the answer is A, if I am not mistaken!
First of all the chloroplasts are only in plant cells and second the mitocondria is what stlres the proteins i think but idk