Physics
Which statement best describes an igneous intrusion?

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

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Physics
In heating frozen foods in sealed pouches in a microwaves, why do you first poke holes in the pouch?

To allow the microwaves to get into the food through the holes
To allow the heat to get into the food through the hole
To prevent the steam pressure from bursting open the pouch
To allow the aroma of the food to come out through the holes

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