There are more than 72 groups among Muslims having very minor differences among them. The major groups are;
1. Ahl--i-Sunnat wal jama'at commonly known as Sunnis
2. Shias
Sunni & Shi-ite.
SUNNI ISLAM and SHIITE ISLAM are two branches of Islam that together represent over 99% of the Muslim community.
Petroleum. For details about the chemistry you might wish to consult the benzene page on wikipedia.
Comets have two main sources, the Oort Cloud or the Kuiper Belt
inherited - from you parents or grandparents and so on. enviromental - from your environment
Acquired Knowledge is knowledge obtained from researches such as medical, engineering, mathematics and psychology. Revealed knowledge is knowledge that is beyond human's thinking, that requires the guide from the two main sources of reference in Islam; the Holy quran and the sunnah (hadeeth). One example is the science of the Quran and the Sunnah.
It is the grains.
I'd have to say Christianity for certain and with the rise of Islam, then Islam is number two.
The holy Quran & the Hadith are the first main sources of legislations in Islam,respectively.
Islam or Christianty
The two main groups of Islam are the Shia and Sunni. They divided into these groups after Mohamed died and they could not decide on just one successor.
The two main sources in water vapor are farming and manufacturing
The two main branches of Islam in Iraq are Sunnis and Shiites. However, both branches share many common Islam principles and rules. Refer to related question below.
Christianity and Islam
islam
The two main sources of air pollution are the toxins released from factories and automobiles.
It is Islam religion. Muslims are belonging to the main two different schools: Shiites and Sunnis.
No, the main sources of the Nile are the White Nile and he Blue Nile
it is more accurate in religious sciences if we apply sect instead of branches.therefore we have to say in Islam religion we have two sects,shiite as minority and Sunni as majority.Sunni and shiism are two main sects of islam religion.