Atravel-time graph can be used to find the
o distance to the epicenter of an earthquake
o distance to the focus of an earthquake
o strength of an earthquake
o damage caused by an earthquake

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass

Which of the follow describes a disadvantage secondary sources have compared to primary sources?

This rapid change in species that rarely leaves behind fossil evidence is referred to as