Physics
A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because

The floor and carpet are at different temperatures
The human body maintains a constant temperature
The stone conveys the heat away from the feet more rapidly than the carpet
The carpet is a better conductor of heat than the stone

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

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