Physics
The base of an electric iron is brightly polished mainly

To reduce heat loss by radiation
To make it smooth and frictionless
To make it rust-proof
To make it more durable

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Physics
Which statement best describes an igneous intrusion?

Magma is injected into surrounding rock forming an igneous intrusive
Magma is exported to an open area and forms iron
Igneous intrusion for when ice crystals splash into lava
Magma explodes to the surface and forms a smooth outer layer of rock

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