Physics
Land is considered a resource because it

Costs little or nothing to use
Is always available to use
Is used to produce things
Requires labor to be useful

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Physics
Mica is used in electrical appliances such as electric iron because mica is

a bad conductor of heat but a good conductor of electricity
a bad conductor of heat as well as electricity
a good conductor of heat but a bad conductor of electricity
a good conductor of heat as well as electricity

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