Concept of balance between acidulous and alkaline. Chalk scales and words on it
Keywords
scale,
acidic,
unbalanced,
acidulous,
alkaline,
acid,
pecking,
chalk,
option,
concept,
school,
election,
balance,
select,
advice,
compare,
study,
board,
preference,
difference,
decision,
variety,
finding,
choice,
alternative