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3491
In ophthalmology, Al-Razi discovered:
A. Retina function
B. Effect of light on pupil reaction
C. Corneal transplants
D. Eyeglasses
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He was the first to record how pupils respond to light.
3492
Which disease did Al-Razi write about in detail?
A. Tuberculosis
B. Smallpox and measles
C. Leprosy
D. Cholera
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His _Al-Judari wa al-Hasbah_ gave one of the earliest clinical descriptions of these diseases.
3493
His famous medical encyclopedia is:
A. Al-Hawi
B. Al-Qanun
C. Kitab al-Shifa
D. Kitab al-Asrar
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_Al-Hawi_ was a comprehensive medical encyclopedia later translated into Latin.
3494
Which anesthetic method did Al-Razi introduce?
A. Nitrous oxide
B. Opium
C. Ether
D. Chloroform
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He used opium as anesthesia during surgical procedures.
3495
Al-Razi was the first to use:
A. Alcohol for sterilization
B. X-rays for diagnosis
C. Digital thermometers
D. Penicillin for infections
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He pioneered the use of alcohol in medicine for cleaning and healing.
3496
Zakariya al-Razi was born in:
A. Bukhara
B. Basra
C. Ray, Iran
D. Damascus
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He was born in Ray (near modern Tehran) in 864 A.D.
3497
Al-Biruni wrote around:
A. 50 books
B. 100 books
C. 150 books
D. 200 books
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His works span mathematics, astronomy, history, medicine, and more.
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## **Zakariya al-Razi (Rhazes)**
3498
Which subject did he NOT write about?
A. Archaeology
B. Biology
C. Engineering
D. Geology
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His contributions covered natural and social sciences, but not engineering.
3499
Which book deals with precious stones?
A. Kitab al-Saidana
B. Kitab al-Jawahir
C. Al-Athar al-Baqia
D. Kitab al-Manazir
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It describes the properties of gems.
3500
Al-Biruni contributed to geography by:
A. Measuring longitudes and latitudes
B. Calculating circumference of Earth
C. Building maps of Asia only
D. Studying ocean currents only
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He precisely measured coordinates of cities.