Physics
Scalar Quantities are

Physical quantities which have no magnitude and no direction
Physical quantities which have magnitude only and direction
Physical quantities which have no magnitude only and only direction
Physical quantities which have magnitude only and no direction

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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 aroma of the food to come out through the holes
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

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