Answer:
increased
Explanation:
I believe to be increased ,because the coal is a natural resource to be used.
i really hope it helps
Precipitation occurs when the product of the ion concentration exceeds the Ksp.
For an object to sink in something, it's density has to be higher than the object it is in, so if it sinks in water the number has be higher than 1
And to float, and objects density has to be lower than that of the substance it is put in, so it has to be lower than 1.26
So between 1 and 1.26