question: Carter is at sea level and looks through a telescope. There is a lot of interference from the atmosphere, so Carter knows that above the telescope, there is _____ air than up on a mountain.
choices.text: less more
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
para_anno.cause_dir_str: less
para_anno.effect_dir_str: less
para_anno.cause_dir_sign: LESS
para_anno.effect_dir_sign: LESS
para_anno.cause_prop: air
question_anno.more_effect_dir: a lot of
question_anno.less_cause_prop: air
question_anno.more_effect_prop: interference