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.  .
Spain did eventually get Guernica in 1981 under the terms specified by Picasso of the country's transition to democracy. The tapestry version at the United Nations was a gift from the estate of Nelson D. Rockefeller in 1985.lack-and-white images carry symbolic as well as graphic punch, of course, and, to a contemporary audience used to black-and-white newspapers and film, the added connotation of objectivity. Guernica is no stranger to political dispute.