Which of the following statements about soil is incorrect?

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Soil controls water availability and helps break down waste productsSoil serves as a growth medium for plants and provides habitat for various organismsSoil acts as a foundation in engineering and influences atmospheric conditionsSoil is merely dirt that poses a danger to all living beings and crop cultivationNone of the above

Explanation

Statements A, B, and C correctly describe soil's functions: it regulates water supply, recycles waste, supports plant growth, provides habitat, serves as an engineering medium, and affects the atmosphere. Statement D is incorrect because soil is not simply harmful dirt; rather, it is essential for sustaining life and agriculture.