Aggregate demand is everything produced while simple demand is one good which statement reflects their similarity? a) downward sloping curve b) vertical curve c) horizontal curve

I believe the answer is A. :)

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

Hello.the answer is  hydrosphere, geosphere, and biosphere  have a nice day