The lens helps the eye to focus on images.
"The Lens. The lens is composed of transparent, flexible tissue and is located directly behind the iris and the pupil. It is the second part of your eye, after the cornea, that helps to focus light and images on your retina."
Explanation:
Teens can improve their bone health and reduce the risk of developing osteoporosis as they grow old by eating foods that are rich in calcium. Calcium is an important mineral that helps build strong, healthy bones as you age.
I'm stuck between two anwsers which is sand/water and blocks
Life goal? Make a chart, or have some type of meter that watches your steps.
I don't really understand this question..
