(i) Plants need a specific pH test, so that we can regularly check the pH range of the soil which is very important for its healthy growth.
a. By knowing the pH range, we can determine the appropriate amount of fertilizers to use so that the production of crop may be occurred instantly.
b. The soil pH is important because it affects the presence of nutrients in the soil.
(ii) If the soil has pH less than 7, we can make it neutral by using calcium carbonate (limestone) It increases the pH of soil.
(iii) Dinesh is concern and aware.
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