What happens to incoming light rays that are parallel to the principal axis of a convex lens?

A.
They converge at the focal point.
B.
They diverge away from the principal axis.
C.
They converge beyond the focal point.
D.
They diverge from the focal point.

This is important. 1. which of the following is an si base unit for measuring length? (2 points) inch gram meter mole 2. which of the following units for distance is an si unit? (2 points) centimeter foot inch yard 3. which of the following tools should a scientist use to measure an object in meters? (2 points) electronic balance pan balance tape measure thermometer

Only 3% of the water on earth is usable by humans. even though that 3% is through the water cycle, we still need to be careful not to waste water.

Do you think you could give me the answers to #29?