Question

over a fifty year period, there has been a considerable change in the percentage of recycled materials. what year did the \percent recycled\ for glass surpass that for paper, according to the graphic below? recycling rates over time % recycled for select materials 1960 1970 1980 1990 2000 2010 year paper/paperboard glass metals plastics 1990 1980 1970 1960

Explanation:

1. Check 1960: Glass recycling rate (≈0%) is less than paper's (≈18%).
2. Check 1970: Glass recycling rate (≈19%) is greater than paper's (≈16%).
3. Verify later years (1980, 1990): Glass remains below paper, so 1970 is the first year glass surpasses paper.

Answer:

1970