Answer: Option A
Answer: (a)
Solid waste refers to solid or semisolid, non-soluble material such as agricultural refuse, demolition waste, industrial waste, mining residues, municipal garbage, and sewage sludge.
It mainly results from the manufacturing processes such as factories, industries, mills, and mining operations.
Some examples of solid wastes produced from manufacturing are:
chemical solvents,
paints,
sandpaper,
paper products,
industrial by-products,
metals, and
radioactive wastes.