Plastics are used to cover electrical cables because _____________.
(a) they are light
(b) they can be moulded into any shape
(c) they do not conduct heat or electricity
(d) they can coloured by adding pigments

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Solution

(c) they do not conduct heat or electricity
Plastics are bad conductors of heat and electricity (good insulators). Hence, they are used to cover electrical cables.

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Plastics are used to cover electrical cables because _____________. (a) they are light (b) they can be moulded into any shape (c) they do not conduct heat or electricity (d) they can coloured by adding pigments

(c) they do not conduct heat or electricity Plastics are bad conductors of heat and electricity (good insulators). Hence, they are used to cover electrical cables.

Plastics are used to cover electrical cables because _____________.
(a) they are light
(b) they can be moulded into any shape
(c) they do not conduct heat or electricity
(d) they can coloured by adding pigments

(c) they do not conduct heat or electricity
Plastics are bad conductors of heat and electricity (good insulators). Hence, they are used to cover electrical cables.