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.  .
by K Shabi PUBLISHED 31 July 2013. Guernica (1937) by artist Pablo Picasso is one of the most famous paintings of all time. Like so many famous works of art, the meaning of Picasso's Guernica is not immediately clear and left wide open to analysis and interpretation.