།གནད་རྣམས་ཇི་བཞིན་རྟོགས་ནས་བརྩོན་པ་ཡི། 요체들 제대로 알고서,
I knew what they were made of, how tightly bonded they were, their density, and which of them would float (none of them).
Extract concentration, Environmental science definition, Circular motion