question: If Milo is listening to the radio in his room and the room gets hotter, what happens to the speed of the sound waves generated by the radio?
choices.text: increase decrease
choices.label: A B
para: For a given medium, sound waves travel more slowly at lower temperatures.
para_anno.effect_prop: sound waves travel more slowly
para_anno.cause_dir_str: lower
para_anno.effect_dir_str: more slowly
para_anno.cause_dir_sign: LESS
para_anno.effect_dir_sign: MORE
para_anno.cause_prop: lower temperatures
question_anno.more_effect_dir: decrease
question_anno.less_effect_dir: increase
question_anno.less_cause_prop: room
question_anno.more_effect_prop: speed of sound waves
question_anno.less_effect_prop: speed of sound waves
question_anno.less_cause_dir: speed of sound waves