Answer:
Gypsum
Explanation:
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO. 2H2O. It's used in many forms of plaster, blackboard/sidewalk chalk, and drywall :)
1) Flapper
2) True
4.02 Checkpoint for K12 lol
Average balance account is your answer
Answer:
They're filthy and they usually have each living area close to each other. The living areas themselves usually have up to two bedrooms and a small shower which almost never runs hot water. Most living areas are brick but is falling apart.
Explanation:
This website pretty much gives a bit of detail about most aspects. Sorry I can't help any more, but this is a great source: spice.stanford.edu/docs/117
