How will you identify the given lens is Convex lens and Concave lens ?

concave is curved in the middle and convex is thick on the side

Convex lenses curve outward like the outside of a sphere, while concave (cave= collapse is how i think it) lenses are thicker on the sides and thinner in the middle and tend to curve inward

Explanation:

Hope this helps <33

answer: the answer is d.

explanation: this is because when you exercise you make your muscle produce a certain liquid, that does not evaporate it.   also when you exercise you do not reduce muscle fiber.   and it does not really control your twitch that much.