The document defines and provides characteristics for four types of factors that impact soil: physical, chemical, biological, and anthropic. Physical factors refer to mineral particles in the soil produced from bedrock breakdown. Chemical factors describe the transformation of soil components into liquid substances used by plants for nutrition. Biological factors involve decomposition of organic material by vegetation, animals, and microorganisms. Anthropic factors relate to how human activities such as excessive fertilizer use, land burning, and improper water use can damage soil quality.

1. Roya Falatoonzadeh

2.  Physical
 Chemical
 Biological
 Anthropic
 What do you think each of these words
mean?

3.  Definition: of or pertaining to that
which is material
 Characteristics:
 There are mineral particles in the
soil.
 These particles are produced in the
Horizon D.
 The bedrock breaks down, making
particles.
 The particles made can be different
sizes.

4.  Definition: A substance produced
by the chemical process
 Characteristics:
 The components of the soil are
transformed into liquid substances.
 The plants use the liquid substances
for nutrition.
 These components change over
time.
 These components determine the
type of soil.

5.  Definition: The living organisms of a region.
 Characteristics
 Vegetation and animals decompose the organic
material.
 This is usually done by microorganisms such as
bacteria.

6.  Definition: Something related to human beings.
 Characteristics:
 Human beings modify their environment in a drastic way.
 The excess use of fertilizers damage the quality of the soil.
 The burning of large areas of land damages the quality of
the soil.
 The improper use of water damages the quality of the soil.