A.as it warms up it becomes heavier than air B.the way it reacts with sea water C.the strong odor it produces D.its low temperature causes frostbite or freezing
A.It increases its volume B.It reduces its volume C.It has less product per volume D.None of the above
A.exclusion of all sand and solid matter B.cleaning with clean fresh or sea water C.examination for fractures and pitting D.All of the above
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