If you were a scientist, why wouldn't you use "sour taste" to identify a compound as acidic?

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.

Anurse used a 0.02-mg/l solution of disinfection to clean a patients wound. what is the concentration of the solution expressed as a percentage?

Draw a line graph showing the relationship between temperature in kelvin as a function of kinetic energy.