Exam 4: The Terrestrial Environment

________ are positively charged particles in the soil that attract anions.

Laterization is a soil-forming process that is typical of cool,moist climates at high latitudes.

The amount of water retained by the soil between field capacity and wilting point is the available water ________.

The largest particles of soil are referred to as ________.

Soil is an abiotic environment.

Soil formation begins with the ________ of rocks and their minerals.

A rock that is broken into smaller fragments as a result of freezing and thawing has experienced ________ weathering.

Particles of ________ control the water-holding capacity of soil and ion exchange.

When the amount of water in soil exceeds what the pore space can hold,the soil is

The E horizon of soils is characterized by the maximum amount of

The surface layer of soils is referred to as the

Soil is formed from the layer of unconsolidated debris overlaying hard,unweathered rock referred to as

Soil particles are classified on the basis of

Oxisols are formed in areas with frozen soil.

The parent material of soils originating from sand and silt carried by the wind is referred to as ________.

Trees allocate most of their tissue mass to supportive and conductive tissues in the trunk.

The smallest particles occurring in soil are referred to as

The wavelengths that make up the visible light spectrum are referred to as ________ radiation.

The amount of water a soil holds at field capacity is greatest for

A sequence of horizontal layers of soil is referred to as a soil ________.