What causes greater runoff on urban landscapes?

A loam soil would benefit the most from the addition of organic matter.

You walk through the desert and notice how the rock is breaking up into smaller and smaller pieces, eventually forming sand. What type of weathering is this an example of?

The organisms that puncture plant roots and predisposes them to other infections are

When taking a soil sample, many topsoil subsamples should be collected from random locations in the field.

All of the following helps maintain organic matter content in the soil EXCEPT

What deficiency would cause marginal scorching of the older leaves and lodging in corn?

Silicon is a beneficial element needed in some plants.

Soil is a medium for plant growth for all of the following EXCEPT

Oxides have a low cation exchange capacity.