How Does Material in Soil Move

question 20

Multiple Choice

How does material in soil move?

• A) the upper part of soil loses material downward
• B) clay minerals and other fine particles are carried downward
• C) chemical ions leached from above can accumulate in the underlying zone
• D) calcium carbonate can accumulate in the soil, especially in dry environments
• E) all of these

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Definitions:

Inhibition

The process of restraining or suppressing a response, action, or biological process.

Excitation

The process of stimulating activity in an organism or in any of its parts, often leading to increased activity or responsiveness.

Synapses

The junctions between neurons through which they communicate with each other using chemical or electrical signals.

Presynaptic Neuron

The neuron that sends a signal across the synapse to another neuron.