Zeina was doing an experiment with sodium hydroxide (NaOH) and she added a buffer to the solution. What would happen to the pH of water?

Why might surface mining be less risky for miners than underground mining? a. surface miners can become trapped in a collapsed mine. b. surface miners work in dusty, enclosed areas. c. surface miners work aboveground. d. surface miners use elevators to enter mines.

Darwin’s hypothesis about how life changes over time is now called?

Which does not describe a physical change happening to water? water evaporating in the sun water reacting with nitrogen gas water freezing and being broken apart with a knife water heating up on a stove