What are the four primary elements found in coal? 90% carbon, 3% oxygen, 4% hydrogen, and 1% sulfur. What forms of air pollution do these elements become as part of coal combustion? When coal is burned for fuel, it combines with oxygen in air to form several air pollutions. What substances are contained within coal ash?
It is an oil painting on canvas.   It is to show Picasso's anger at the bombing of the little Spanish town Guernica in 1937.  .
Considered a progenitor of Modern Art and an originator of Cubism, there were nonetheless several recurrent themes in Picasso's work.Instead of using traditional battle imagery as visual inspiration for Guernica, Picasso turned to the familiar arena of the Spanish bullring.onsidered a progenitor of Modern Art and an originator of Cubism, there were nonetheless several recurrent themes in Picasso's work.