Islam is most common in Africa, Western and eastern Asia,the Middle East and south East Asia. But most Muslim countries have non Muslim minorities except for Saudi Arabia and Somalia, which are the only countries with 100% Muslim populations. Also, Islam is the fastest growing religion amongst the native populations of western Europe and the USA.
The most common religion in Algeria is Islam, with the majority of the population being Sunni Muslims. There are also small Christian and Jewish communities in the country.
Islam is a religion - therefore the answer is Islam.
The most common religion in North Africa is Islam.
The most common religion in Libya is Islam.
Islam became the most common religion
Islam
Islam
There are no official symbols of Islam. With that being said, some would say the most common symbols that represent Islam are the Star and Crescent. But there are findings in the Quran that specify that either are legitimate official symbols of Islam.
Christianity is the second most common religion in Africa, with Islam being the most common.
Islam
Islam
Indonesia