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Ibn al-Haytham was born in.....

• Basra, Iraq

• Cairo, Egypt

• Makkah, Saudi Arabia

Ibn al-Haytham wrote more than.....books.

• five

• fifteen

• fifty

"The Book of ....." is his most important book.

• lenses

• optics

• discovery

Ibn al-Haytham moved to.....and he became an important man.

• Cairo

• Jeddah

• Paris

Ibn al_Haytham wrote a book about what lenses,mirrors and magnifying glasses do with.....

• sight

• night

• light

He discovered that light.....

• comes out from eyes like a torch

• goes into eyes from the world

Because he was very good at mathematics, Ibn al-Haytham worked as the caliph's.....

• doctor

• teacher

• engineer

Ibn al-Haytham's dream to build a dam across the Nile became reality.....years later.

• 2000

• 100

• 1000