Using an example, such as the natural building of sand dunes, the process of DEPOSITION causes? A

B

C

D

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s

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.