Study of birds
A. Orology
B. Optology
C. Ophthalmology
D. Ornithology
Answer: Option D
Solution (By Examveda Team)
One word substitute is Ornithology.Orology: study of mountains.
Optology: the science of testing eyes for lenses.
Ophthalmology: the branch of medicine concerned with the study and treatment of disorders and diseases of the eye.
Ornithology: the scientific study of birds.
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