Question

Define all of the following:

1. Orb

2. Iris

3. Choroid

4. Solid or whiteness​

Answer 1

Answer:

1. orbit is a circular path in which:

planets revolve around the sun

satellites revolve around the planets and electrons revolve around the nucleus

2. it is a muscular tissue present in our eyes which contracts or relaxes The Pupil to control the amount of light entering in our eyes