Answer:
It is becoming more acidic.
Explanation:
The pH scale is a way to express the concentration of hydrogen ions. This scale goes from 0 to 14 and it is adimensional.
- If the pH < 7, the solution is acid.
- If the pH = 7, the solution is neutral.
- If the pH > 7, the solution is basic.
The lower the pH, the more acidic the solution. Since the pH of the garden soil of Olivia is decreasing, it is becoming more acidic.
