Coal the heat and pressure of deep burial causes the loss of water, methane and carbon dioxide and an increase in the proportion of carbon. Thus first lignite (also called "brown coal"), then sub-bituminous coal, bituminous coal, and lastly anthracite (also called "hard coal" or "black coal") may be formed. The wide, shallow seas of the Carboniferous Period provided ideal conditions for coal formation, although coal is known from most geological periods. The exception is the coal gap in the Permian–Triassic extinction event, where coal is rare. Coal is known from Precambrian strata, which predate land plants—this coal is presumed to
What a Beautiful Name A video for the song was recorded at the Hillsong Conference in Sydney and was released on 30 September 2016. Music critic Matt Collar praised Hillsong Worship for their "passionate, faith-based sound" and wrote that fans of the group "will surely appreciate this emotive, uplifting Christian pop." Jake Gosselin attributes the popularity of the song in the Christian community to a number of factors. He writes that "What a Beautiful Name" is "singable." In practice this refers to the "small vocal range" of the song which is "one note over an octave." This translates to a song that is easy