Which does not contain a lens?
a.
a floodlight
b.
eyeglasses
c.
a glass eye
d.
a jeweler's loop

Which feature indicates that mars resides in the inner region of the solar system

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.

Iwill give 30 points to whoever answers ! what is the formula for actual mechanical advantage and ideal mechanical advantage?