Discussion
Which of the following statements is incorrect about contribution of Arab Geographers ?
Answer: C
The incorrect statement is Sun was considered as the centre of the universe.
Arab geographers and astronomers followed Ptolemy's geocentric system, with the earth at the centre and the sun and planets moving around it. A heliocentric universe was set out convincingly only by Copernicus in 1543.
The other statements reflect accepted Arab contributions: Arab astronomers of the ninth century, the tradition to which al-Battani (written Al Battam here) belonged, worked on measuring the size of the earth; al-Masudi described the monsoon winds of the Indian Ocean; and Arab scholars explained tides through the influence of the moon and the sun.
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