Which of the following materials is commonly accepted in recycling programs?

Cardboard is commonly accepted in recycling programs due to its widespread availability and the ease with which it can be processed. It is made from natural fibers, which makes it highly recyclable. Many recycling facilities have efficient systems in place for collecting and transforming cardboard into new products. Additionally, cardboard is often used in packaging and shipping, leading to a substantial amount of it being generated and collected in residential and commercial waste streams.

In contrast, options like Styrofoam, food waste, and plastic bags present challenges for recycling programs. Styrofoam is not accepted in many areas due to its bulky nature and difficulty in processing. Food waste, while compostable, generally does not fit into traditional recycling streams. Plastic bags also often get tangled in machinery at recycling facilities, leading to operational issues, which is why many curbside recycling programs do not accept them. Understanding these distinctions helps clarify why cardboard stands out as a preferred material in recycling initiatives.