Question

Plant and animal are PH sensitive. Living organism can survive only in narrow range of PH change
2. PH of the soil plant require a specific pH range of their healthy growth
3. Change in pH causes tooth decay start when the pH of the mouth is lower than 5.5 tooth enamel get corroded when the PH in the mouth is below 5.5

Answer 1

ph of range near to 7 is best suited soil for plant's growth...

ph below 5.5 maked our mouth too acidic that the hardest substace in our body i. e. enamel get corroded..