Which of the following is an example of rotation? a. the moon titan orbiting the planet saturn b. the planet saturn orbiting the sun c. a cyclist riding around a circular track d. earth spinning on its axis

d. earth spinning on its axis

hope this helps

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.

the maxium height is 34m/s