Which option best represents the 'Solid' category among listed pollution types?

Which option best represents the 'Solid' category among listed pollution types?

• A. Indoor
• B. Solid
• C. Hazards
• D. Electronic

Answer: (B)

Solid pollution refers to pollutants in a solid state, such as dust, soil, or debris. Among the listed options, the one labeled Solid directly matches this category, making it the best representation. Indoor pollution points to contaminants inside buildings; Hazards is a broad term for dangerous materials; Electronic focuses on electronics-related waste. Because the question asks for the category that is literally the solid form, the label Solid is the correct fit.

Solid pollution refers to pollutants in a solid state, such as dust, soil, or debris. Among the listed options, the one labeled Solid directly matches this category, making it the best representation. Indoor pollution points to contaminants inside buildings; Hazards is a broad term for dangerous materials; Electronic focuses on electronics-related waste. Because the question asks for the category that is literally the solid form, the label Solid is the correct fit.