20 how do the charges compare when two objects are charged through friction?
a. the objects become oppositely charged and have equal amounts of charge.
b. the objects become positively charged and have equal amounts of charge.
c. the objects become negatively charged and have different amounts of charge. d. the objects become oppositely charged and have different amounts of charge.

like poles repel so keep pushing north to north and repels funny to see 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.