The organic components typically found in MSW are:

The organic components typically found in MSW are:

• A. carbon, hydrogen, and oxygen only
• B. carbon, hydrogen, oxygen, nitrogen, sulfur, and ash
• C. carbon, oxygen, and phosphorus
• D. carbon, hydrogen, oxygen, and heavy metals

Answer: (B)

Organic matter in municipal solid waste is built from carbon-based compounds, so the main elements you expect are carbon, hydrogen, and oxygen. Nitrogen and sulfur are also common because many organic molecules (like proteins and certain plastics with additives) contain these elements. Ash represents the inorganic mineral residue that accompanies the organic fraction when waste is burned or analyzed, and it’s typically reported alongside the organic components because it influences combustion behavior and residue characteristics. So listing carbon, hydrogen, oxygen, nitrogen, sulfur, and ash captures the typical elemental makeup encountered in MSW’s organic-rich fraction. Other options omit one or more of these elements or include items that aren’t characteristic of the organic content.

Organic matter in municipal solid waste is built from carbon-based compounds, so the main elements you expect are carbon, hydrogen, and oxygen. Nitrogen and sulfur are also common because many organic molecules (like proteins and certain plastics with additives) contain these elements. Ash represents the inorganic mineral residue that accompanies the organic fraction when waste is burned or analyzed, and it’s typically reported alongside the organic components because it influences combustion behavior and residue characteristics. So listing carbon, hydrogen, oxygen, nitrogen, sulfur, and ash captures the typical elemental makeup encountered in MSW’s organic-rich fraction. Other options omit one or more of these elements or include items that aren’t characteristic of the organic content.