A fertile soil, suitable for growing common crops is likely to have a pH value of _____________.
A
three
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B
four
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C
six to seven
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D
nine to ten
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Solution
The correct option is C six to seven
Soil pH is a measure of the acidity and alkalinity in soils. pH levels range from 0 to 14, with 7 being neutral, below 7 acidic and above 7 alkalines. The optimal pH range for most plants is between 5.5 and 7.0; however, many plants have adapted to thrive at pH values outside this range.