7. How long does it take Styrofoam to break down in a landfill ? (a) 1 year
(b) 10 years 0 (c) 200 years
(d) 50 years

C: 200 years

Though it has many uses and benefits, Styrofoam, a brand name for polystyrene foam, takes a hefty toll on the environment. Estimates vary for the breakdown of Styrofoam from a few years to as much as 1 million, depending on environmental conditions.

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