question: As sound waves move away from a speaker they become
choices.text: louder quieter
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: energetic
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: LESS
para_anno.cause_prop: distance
question_anno.more_effect_dir: louder
question_anno.less_effect_dir: quieter
question_anno.more_effect_prop: sound waves
question_anno.less_effect_prop: sound waves
question_anno.less_cause_dir: sound waves