question: If Mary is playing music in her room and the heater starts working, causing the temperature to rise, what happens to the speed of the soundwaves her radio is generating?
choices.text: increases decreases
choices.label: A B
para: For a given medium, sound has a slower speed at lower temperatures.
para_anno.effect_prop: sound has a slower 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: temperatures
question_anno.more_effect_dir: increases
question_anno.less_effect_dir: decreases
question_anno.more_effect_prop: speed of soundwaves
question_anno.less_effect_prop: speed of soundwaves
question_anno.less_cause_dir: speed of soundwaves