The answer is A because the time wouldn't affect the weather that much depending on the circumstances.
It should be for the total solution of 93 plus 20 grams which is 113 grams so 93 divided by 113 grams comes to 82.3% sodium sulfate and this can be checked by multiplying 113 grams by 0.823 which results in 93 grams of sodium sulphate.
The answer is ignore this thanks
I think its A.
if one force cannot overcome the other, the object remains stationary.
the process of changing one form of energy into another