Environmental

Which type of insulation material, commonly used before the 1980s, may be found in Delaware homes and is a health hazard?

AFiberglass insulation
BSpray foam insulation
CUrea-formaldehyde foam insulation✓ Correct
DCellulose insulation

Explanation

Urea-formaldehyde foam insulation (UFFI), used widely in the 1970s, was banned for residential use in 1982 because it releases formaldehyde gas, which is a health hazard.

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