What's the insulating in houses made out of?

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What's the insulating in houses made out of?
 
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Many different materials are and can be used. Fiber glass is common, vermiculite is another, crumpled newspapers have been used. The list is long. Some key properties are trapped air spaces and low flammability.
 
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Thread 'Prove that evolution is constant (Provide at least two arguments to support your position)'

I don't get how to argue it. i can prove: evolution is the ability to adapt, whether it's progression or regression from some point of view, so if evolution is not constant then animal generations couldn`t stay alive for a big amount of time because when climate is changing this generations die. but they dont. so evolution is constant. but its not an argument, right? how to fing arguments when i only prove it.. analytically, i guess it called that (this is indirectly related to biology, im...
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