If a wave hits a smooth surface at an angle of incidence of 40 degrees, the angle of reflection is
a. 40 degrees.
b. 80 degrees.
c. 90 degrees.
d. 0 degrees.

Which of the following represents an upside-down image?

Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.

How many times did thomas edison mess up the light bulb