Question

is cold air denser and heavy?
or only heavy
or only denser
​

Answer 1

Answer:

Cold air is always heavier than an equal volume of hot air. ... By volume, dry air contains 78.09 percent nitrogen, 20.95 percent oxygen, 0.93 percent argon, 0.039 percent carbon dioxide and small amounts of other gases

Answer 2

Answer:

cold air

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