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.  .
This work is seen as an amalgmation of pastoral and epic styles. The discarding of color intensifis the drama, producing a reportage quality as in a photographic record. Guernica is blue, black and white, 3.5 metre (11 ft) tall and 7.8 metre (25.6 ft) wide, a mural-size canvas painted in oil.