Critical Thinking If there is a difference between a substance's atomic number and
its atomic mass, which measure must be the
larger number?

the average speed is 24.57 km/hr

i think if it were me i whould divide 300 dide 15

step-by-step explanation:

-4 on

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.