For me: WASH OUR HANDS REGULARLY
Answer:
The answer is "
"
Explanation:
Using the law of conservation for energy. Equating the kinetic energy to the potential energy.
Calculating the closest distance:


I believe you are right. pH is the concentration of H+. Therefore the more acidic the more H+.
Speed equals distance divided by time, so 350 divided by 2.5 equals 140 kilometers per hour.