Hey guys! Can someone clarify if I have put the correct answer?

What type of nuclear decay causes the atomic number of an element to increase by 1?

What happens when a rubber rod is rubbed with a piece of fur?

Ateacher gives students four liquids commonly found in the kitchen - vinegar, apple juice, dish detergent, and milk - and ph indicator strips, which measure acidity. the teacher asks the students to put the liquids in order from most acidic to most basic. what type of investigation could the students conduct to determine the correct order for the liquids?