Question

which purchase would cause concern about exposure to lead?
buying a gallon of paint from the local hardware store
buying gas for a car or truck over 20 years old
buying a historic home built in the 1940s
buying pesticide from the local gardening center

Explanation:

• Buying a gallon of paint from the local hardware store: Modern paints are lead - free.
• Buying gas for a car or truck over 20 years old: Leaded gasoline was phased out in the 1990s.
• Buying a historic home built in the 1940s: Older homes (pre - 1978 in the US) may have lead - based paint.
• Buying pesticide from the local gardening center: Pesticides do not typically contain lead.

Answer:

buying a historic home built in the 1940s