<span>Certain elements (gases) have their own specific and unique brighline spectra, so to identify different gases on the surface of a star, all scientists have to do is to look at the brightline spectra that those gases emit and compare to the spectra of the known gases on earth. If the spectra from the gas on the star matches the spectra of the known gas on earth, then there is no problem in identifying the gas.</span>
One such area is the circum-Pacific Ring of Fire , where the Pacific Plate meets many surrounding tectonic plates. The Ring of Fire is the most seismically and volcanically active zone in the world.
Religion is a prime factor in the history. Spreading of a religion depends on various factors.
The main factor of spread of Islam was conquering of non-Muslims religion people by the Muslim community. Muslims begin to conquer the Syria and Persia.
The Muslims captured the Jerusalem religion followers. Islam also spread through military conquest, trading, pilgrimage, and missionaries. Arab Muslim forces also conquered vast territories all over the world. Many Islam religion spiritual places were built. This made the belief of no Muslims to start believing in the religion and to get faith in it. This lead to vast spread of the Muslim religion.
