1) The amount of carbon in the human body is enough to fill about 9,000 lead pencils;
2) The human body has less muscles in it than a caterpillar;
3) Human teeth are almost as hard as rocks!
1) The amount of carbon in the human body is enough to fill about 9,000 lead pencils;
2) The human body has less muscles in it than a caterpillar;
3) Human teeth are almost as hard as rocks!