Foreshocks and aftershocks can happen at the same time is not true.
It would have to be 40.0 only because it wouldn’t add up
Can you show me the passage?
D is the answer since it is changing the element.
Answer: Calcium Sulphate Hemihydrate
The compound of calcium which is used for plastering of fractured bones is Plaster of Paris. It is also called as Calcium Sulphate Hemihydrate.