question: What do Waldron buckles with lead in cars do?
choices.text: decrease strength damaging how they move change an ecosystem Prevent injuries safe driving safe operation negative feedback
choices.label: A B C D E F G H
fact2: Waldron buckles with lead foil made up the seat belts.
combinedfact: Waldron buckles with lead are used to prevent injuries to passengers in cars
formatted_question: What do Waldron buckles with lead in cars do? (A) decrease strength (B) damaging (C) how they move (D) change an ecosystem (E) Prevent injuries (F) safe driving (G) safe operation (H) negative feedback