Question

where are most of the chloroplasts located on a plant? on the underside of the leaf near the tip of the roots on the top of the leaf near the base of the roots

Explanation:

Chloroplasts are the site of photosynthesis. Leaves are the main photosynthetic organs. The upper - side of the leaf is more exposed to light, so most chloroplasts are on the top of the leaf to capture light efficiently. Roots are mainly for absorption and not for photosynthesis, so there are few or no chloroplasts in roots.

Answer:

on the top of the leaf