Answer:
the color of the litmus paper will turn into blue color because sodium carbonate is basic in nature
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.
The answer is “Heat Conduction”
Answer:
the correct answer is D. Both energy and mass can enter or exit a closed system.
Explanation: