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5. The following are characteristics of materials that are good conductors of heat and electricity EXCEPT one. Choose the letter only.
A. Thermal conductivity
B. Porosity
C. Malleability
D. Ductility


Sagot :

Answer:

A. Porosity

Explanation:

Porosity is the property of a material that allows water and gases to pass through it.

While the others are good thermal conductivity becayse they are made from metala, copper, silver, cast iron, etc.