question: A sifter is used for doing what to soil?
choices.text: A hinged joint watering Stomata closing combining water loss mixing experiments separating
choices.label: A B C D E F G H
formatted_question: A sifter is used for doing what to soil? (A) A hinged joint (B) watering (C) Stomata closing (D) combining (E) water loss (F) mixing (G) experiments (H) separating