Assume a newly discovered planetary system orbits a star exactly like the Sun and that the system is the same age as our solar system. Of the four planets described below, which one would you expect to have the most features of erosion?

Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.