I really need help with this problem ;)

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

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.

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f