What is the scale that measures the acidity or basicity of a solution? A. Concentration

B. Compound

C. Neutralization

D. pH​

PH scale is a universal indicator of strongness of base and acid

organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.

nuclear fission produces elements that are heavier than helium.

the elements that are used in nuclear fission and their products are much heavier than helium.