Question

Which value indicates the amount of natural soil 1/2 mark​

Answer 1

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Soil pH is affected by land use and management. These changes are caused by a loss of organic matter, removal of soil minerals when crops are harvested, erosion of the surface layer, and effects of nitrogen and sulfur fertilizers. Addition of nitrogen and sulfur fertilizers can lower soil pH over time.

Answer 2

Explanation:

Soils can be classified according to their pH value:

6.5 to 7.5—natural