question: When Dave screams outside he notices that the sound travels at different speeds in different temperatures. The sound travels slower when it is
choices.text: cold. hot
choices.label: A B
para: For a given medium, sound has a slower speed at lower temperatures.
para_anno.effect_prop: speed
para_anno.cause_dir_str: lower
para_anno.effect_dir_str: slower
para_anno.cause_dir_sign: LESS
para_anno.effect_dir_sign: LESS
para_anno.cause_prop: temperature
question_anno.less_effect_dir: slower
question_anno.less_cause_prop: temperatures
question_anno.less_effect_prop: sound travels
question_anno.less_cause_dir: sound travels