Which is a convex lens? (The blue arrows represent the direction of light as it interacts with the lenses. ).

Distinguish between a transverse wave and a longitudinal wave.

Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults

Work = force × a. work b. energy c. distance d. momentum