Soil fertility is best described as being dependent upon

a.

the balance between organic matter and mineral nutrients

b.

soil color and the local climate

c.

topography and the local climate

d.

soil texture

The answer is a. soil fertility is dependent on the balance between organic matter and mineral nutrients.Organic matter in soils comes from the dead and decaying parts of plants and animals and animal droppings. Decomposers in ecosystems break these material down to form humus. Decomposers are essential in the nutrient recycling process. The moneral component in soils is dependent on the parent rock present. Weathering breaks down rocks to form soil. Igneous rocks for example weather to form fertile soils.