Exam 18: The Geography of Soils

Which of the following is correct regarding the physical property of soil?

In terms of pedogenic regimes,which process results in an accumulation of humus overlaying a thick,water saturated layer of clay in cold,wet climates with poor drainage conditions?

Worldwide,desertification is affecting an estimated how many people.

Which are soils characteristic of the northern coniferous forests?

Soil oxygen concentrations are lower than atmospheric oxygen concentrations due to ongoing respiration processes in the ground.

Which best describes Cryosolic soils?

Soil science is an interdisciplinary study,drawing on aspects of physics,chemistry,biology,mineralogy,hydrology,taxonomy,climatology,and cartography.

Which is the practice of leaving crop residue on the field between plantings to help prevent soil erosion?

Which of the following best describes the Canadian System of Soil Classification?

What is the predominant soil order in the area in which you live? Describe the activities that occur on these soils that reflect the characteristics thereof.

A dark coloured soil always indicates high organic content.

A clay-rich bottomland is likely to experience which of the following?

Which is the branch of soil science that deals with the origin,classification,distribution,and description of soils?

Soil is composed of 70% mineral matter,5% organic matter,and varying amounts of water and air totaling 25%.

Which is a soil that is 20% sand,60% silt,and 20% clay?

With which are Chernozemic soils associated?

Which refers to the size and shape of the aggregates of particles of soil?

Which of the following soil horizon designations is the correct sequence from the surface to the bedrock?

Which is the basic sampling unit,in soil surveys representing all the characteristics and variability used for classification?

Each differing and distinct mineral and organic strata within a soil column is called a horizon.