What is the difference between mitosis and meiosis?

Mitosis produces an exact copy of the original containing the same 46 chromosomes as the original cell

Meiosis produces 4 individual sex cells ( gametes) with only 23 chromosomes in each. This is so when a sperm cell and and egg cell meet the combine to make 46 total chromosomes with genes from each parent

Meiosis has two rounds of genetic separations and cellular division while mitosis only have one 

True statement gravity force is more on bigger mass, less on smaller mass.all mass fall on planet with same acceleration and speeds