What are 2 ways pH is relevant in your life?
Blood and acid rain
Blood: Blood has to remain between 7.35 and 7.45 or you can enter a coma and die. A system of buffers is in place to help regulate the levels.
Acid rain: Acid rain, caused by sulfur dioxide and nitrogen oxide emissions reacting with water molecules in the atmosphere, can have harmful effects on plants, aquatic life, and infrastructure (like buildings or statues).