question: Given two equal measures of water by volume, which would be heavier
choices.text: ocean water distilled water?
choices.label: A B
para: Water becomes more dense when it is colder and when it has more salt.
para_anno.effect_prop: water density
para_anno.cause_dir_str: more salt
para_anno.effect_dir_str: more dense
para_anno.cause_dir_sign: MORE
para_anno.effect_dir_sign: MORE
para_anno.cause_prop: water salinity
question_anno.more_effect_dir: heavier
question_anno.less_cause_prop: distilled water