question: Eric built his telescope lower. The interference from the atmosphere down here is
choices.text: lower higher
choices.label: A B
para: Many observatories are built on high mountains. There is less air above the telescope, so there is less interference from the atmosphere.
para_anno.effect_prop: interference from the atmosphere
para_anno.cause_dir_str: less
para_anno.effect_dir_str: less
para_anno.cause_dir_sign: MORE
para_anno.effect_dir_sign: LESS
para_anno.cause_prop: air above the telescope
question_anno.more_effect_dir: higher
question_anno.less_effect_dir: lower
question_anno.more_effect_prop: interference
question_anno.less_effect_prop: interference
question_anno.less_cause_dir: interference