question: Something with a lot of energy travels
choices.text: short distances long distances
choices.label: A B
para: However, the energy is diluted as an electromagnetic wave travels farther from its source because it spreads out over an ever-larger area.
para_anno.effect_prop: distance
para_anno.cause_dir_str: diluted
para_anno.effect_dir_str: farther
para_anno.cause_dir_sign: MORE
para_anno.effect_dir_sign: MORE
para_anno.cause_prop: energy
question_anno.more_effect_dir: long
question_anno.less_effect_dir: short
question_anno.more_effect_prop: distances
question_anno.less_effect_prop: distances
question_anno.less_cause_dir: distances