The insulation should help keep the temperature at a more constant level within the house, there will be much less need for the use of fans, heaters and air conditioning. This means less use of electricity which in turn often means less burning of fossil fuels which release carbon dioxide, adding to greenhouse gases.
it doesnt
yes you can but you must think of insulating the house aswell
A lot
it keeps your house warm in the winter without uses your heater.
Insulating tissue that provides warmth.
Yes heat rises and if your attic is not insulated it will escape out of the roof.
It's good to use because insects could get in your house without it and your house would be cold (depending on how cold it's outside.).
if you don't it could stay in your house and it could melt and you wont be able to take the smell out of the house for a while and it will help the environment
erosion can never help the environment indeed it affects environment
yes it does cos its the house that's smaller so it uses less power.
It is clean so it help our environment.
squirrels help the environment by germination