Question

1.dash and dash are used for covering electric wire
2 a metallic key is a dash while a plastic and dash
3 dash do not allow electric current to pass through them​

Answer 1

1. Rubber and Plastic are used for covering electric wire
2. Copper do not allow electric current to pass through them

Answer 2

Explanation:

1. Copper, Plastic
2. Conductor, Insulator
3. Insulators

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