Question

when does the pH of soil become more acidic?

Answer 1

Answer:

when the value of ph is less than 7.

Answer 2

Soil with pH levels above 7 are alkaline; those of less than 7 are acidic. The lower the pH, the more acidic is the soil. Soils in humid regions tend to be acidic; those in semiarid and arid regions tend to be around neutral or alkaline. Acidification is a natural process.