What percent of earth’s surface is covered by land?

25 percent
50 percent
75 percent
90 percent

In physics the desire of an object to keep doing what it is doing is termed?

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.

The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse