Match it:
 
Explain the structure and functioning of Human eye. How are we able to see nearby as well as distant objects?
Answer variants:
Centre of the Iris
Eye's back surface
Coloured portion of the eye
Front surface of the eyeball
Power of accommodation
Column A
Column B
1. Cornea
2. Iris
3. Ciliary muscles
4. Pupil
5. Retina