Answer:
what's the question?I can't answer without a question
The given above pretty much states already that with the presence of the calcium carbonate which acts as the buffer will allow the solution to withstand changes in acidity. The greater the amount, the higher chances that it will be able to withstand the said changes. Therefore, if Lake X had greater ppm of CaCO3 then, it will be able to withstand greater amount of acid rain.
Size (length+width) approx.
The answer is gonna be the last one :)
Na3P is the formula if that helps
