Fossil Lesson Review Questions Describe how fossils usually form.

Compare and contrast relative and absolute dating.

How did scientists use fossils to solve the mystery of whale evolution?

PLEASE HELP ME ANSWER THESE oops sorry my caps was on but please help and actally answer

Fossils are usually formed under heat and pressure deep in the earth. Relative dating is using the rock layer it was found in, and absolute dating is using radioactive decay to find the exact date a fossil was formed.

An  atom  (ours, not carroll's) consists of a positively charged  nucleus, surrounded by one or more negatively charged particles called  electrons. the positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. although the nucleus is heavy, it is quite small compared with the overall size of an atom. the radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6  nm.  *  if an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.read more on -