Identifying a substance based on density lab:

Metal Density (g/mL)

Cu 8.92

Al 2.702

Pb 11.3437

Zn 7.14

Fe 8.39

Sn 7.28

You are given a metal block with a mass of 62.44g and a volume of 7cm3. What is the identity of your block? How did you know?

the answer is a. hope this .

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.

that would be because of both gravity and friction. so     c