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Jin listed some common thermal insulators and conductors in a chart.

Insulators
rubber
Conductors
copper
х
air
Which belongs in the area marked with an X?
iron
foam
wood
glass

User Ilya Popov
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2 Answers

2 votes

The answer is A.

I know this information because I just took the unit test review on Edg.

User Djshiow
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3 votes

Answer:

A. iron

Step-by-step explanation:

I got a 100

User JoshVarga
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