HORTICULTURE

Detailed explanation-1: -pHs less than 7 are acidic while pHs greater than 7 are alkaline (basic).

Detailed explanation-2: -pH values lower than 7 are acidic, and pH values higher than 7 are alkaline (basic).

Detailed explanation-3: -The U.S. Environmental Protection Agency recommends that the pH level of water sources should be at a pH measurement level between 6.5 to 8.5 on a scale that ranges from 0 to 14. The best pH of drinking water sits right in the middle at a 7.

Detailed explanation-4: -A solution with a pH of 9 is basic in nature. The pH measures the hydrogen ion ( ) concentration. On dilution (adding water), the dissociation of water molecules will give an equal number of hydrogen ions and hydroxide ions.