The human eye can focus objects at different distances by adjusting the focal length of the eye lens. This is due to:
A. presbyopia
B. accommodation
C. near-sightednes
D. far-sightedness
Answer:B
The human eye can focus objects at different distances by adjusting the focal length of the eye lens. This is due to:
A. presbyopia B. accommodation C. near-sightednes D. far-sightedness