litmus paper- red and blue bromothymol blue- yellow in acid; clear in neutral; purple in base pH paper- universal indicator-range of colors cabbage juiceg
There are many houshold indicators
For example: Blackcurrant juice;(any Fruit juice); Tomato puree and Cabbage; Preferably red
I hope this has helped!!!
A measurable economic factor that changes before the economy starts to follow a particular pattern or trend. Leading indicators are used to predict changes in the economy, but are not always accurate.
There are a number of them (no exact number). For example, rates of obesity is a leading health indicator. Rates of diabetes, hypertension, heart attacks and strokes are also used, and many others,...