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.  .
Blindness is a recurrent theme in Picasso's works of this period, also represented in The Blindman's Meal (1903, the Metropolitan Museum of Art) and in the portrait of Celestina (1903). Other frequent subjects include female nudes and mothers with children.A significant influence on Picasso's blue period paintings was his visit to a woman's prison called St. Lazare in Paris, where nuns served as guards. The Two sisters is an example of how Picasso used to mix daily reality with Christian iconography.lindness is a recurrent theme in Picasso's works of this period, also represented in The Blindman's Meal (1903, the Metropolitan Museum of Art) and in the portrait of Celestina (1903). Other frequent subjects include female nudes and mothers with children.