Can someone please help me with this don’t worry about the word count idrc (20 pts!)

What problem would a person have if the nucleic acid in one of his or her cells were damaged?

Which best explains why an iceberg floats?

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.