Tectonic movements are generally measured in per year.

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

Which describes increasing the efficiency of energy resource

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.