Please help! Question is attached!

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.

During the past 150 years in the united states, how did energy consumption compare to population growth

Abowling ball rolls 32 meters in 0.8 seconds what is the average speed in m/s of the bowling ball in m/s