Physics
We always see the same face of the moon, because

It is smaller than the earth
It revolves on its axis in adirection opposite to that ofthe earth
It takes equal time for revolution around the earth and rotation on its own axis
It rotates at the same speed as the earth around the sun

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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 heat to get into the food through the hole
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 prevent the steam pressure from bursting open the pouch

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