question: If Milo is listening to the radio and he moves closer to the radio in the room, what happens to the sound waves entering his ear?
choices.text: they spread out less they spread out more
choices.label: A B
para: The farther the sound waves travel away from the source, the more spread out their energy becomes.
para_anno.effect_prop: spread out their energy
para_anno.cause_dir_str: farther
para_anno.effect_dir_str: more spread out
para_anno.cause_dir_sign: MORE
para_anno.effect_dir_sign: MORE
para_anno.cause_prop: sound waves travel away from the source
question_anno.more_effect_dir: spread out more
question_anno.less_effect_dir: spread out less
question_anno.less_cause_prop: milo
question_anno.more_effect_prop: sound waves entering his ear
question_anno.less_effect_prop: sound waves entering his ear
question_anno.less_cause_dir: sound waves entering his ear