The position of Quran as proof and document is foremost. Followers of Islam believe that the Qur'an transcends all kinds of controversy , doubt , skepticism and error. However , since its inception, opponents have been criticizing the Qur'an in various ways. Regarding the Holy Quran, Roy J. Glober said that this universe was not created at all in 24 hours and six days . Rather, it has been the result of billions of years of complex physical and chemical processes. However , Allah Ta'ala says in the Holy Qur'an , He created this world in six days. In this regard, Dr. Maurice Bucaille has described the above in detail in his famous book , The Bible , the Qur'an and Science . He said that the word used in Arabic to mean ' day ' is ' iyam ' . The word ' Ayam ' is the plural of the Arabic word ' Yaom ' . The word ' yaom ' means ' day ' . It could be a single day for 24 hours , or it could be longer than 24 hours. And the fact that the universe and the earth were created in six long periods of time does not contradict science. In addition to claiming seven heavens in different places, the Qur'an also claims in one place that Allah has created a total of eight worlds like ours. This verse has been criticized by critics as scientifically flawed.