What feature is common to all microscopes, and how is this feature related in the word "microscope"?

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.