D. Electrons
Atoms can share their electrons in order to create bonds with other atoms
The correct answer C - acceleration
you have to show us the rest of it because we have no idea what your looking at. I'm sorry
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.