Oxygen has an oxidation state of -2 so considering that there are 2 oxygen atoms,
2 x -2 = -4
The compound is neutrally charged so the sum of all the oxidation states must be zero. Therefore the oxidation state of Ge must be +4 in order to cancel the -4 to make zero.
1 atmosphere = 14.7 lb/in
So to convert lb/in to atmosphere, just divide by 14.7.
28.5 / 14.7 = 1.94 atmospheres.
Increased Evaporation/B is correct :p
The correct answer is C. because it could lead to an increase in ocean levels