sentence2_structure: One of the properties of an air mass<>is<>that an air mass has similar temperature and moisture properties throughout it$$$an air mass<>has<>similar temperature and moisture properties
sentence1: This is the way we examine air-mass properties.
sentence2: One of the properties of an air mass is that an air mass has similar temperature and moisture properties throughout it.
question: Which of the following is true regarding the properties of an air mass?