asked 2.9k views
3 votes
One way to warm air without adding heat is to

a. blow it across a hot object, such as a fire b. compress it, such as by inflating a tire
c. let it expand, such as by letting the air out of a tire
d. blow it across a cold object, such as frozen water

1 Answer

4 votes

Answer:

B). compress it

Step-by-step explanation:

answered
User Fsiaonma
by
8.2k points
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