Soils Quiz

The best term to describe the effect of glaciation on soil development would be:

Reset

Pause

Accelerator

Minor alteration

The study of soil classifications, their properties and relationships across landscapes is defined as:

Edaphology

Soilology

Pedology

Dirtology

The combination of the biosphere, hydrosphere, lithosphere and atmosphere is called the

Ecosphere

Pedosphere

Pidosphere

Mesosphere

Which soil horizon contains the most organic matter?

O horizon

A horizon

B horizon

C horizon

Soils developing on lacustrine deposited materials would show what in PGM

Mainly sand

Mostly clay

Alternating layers of silts and clays

Mixed soils

Which pgm would you expect to have the greatest depth of weathering

Sandy

Clayey

Silty

Which soil type has the smallest particle size?

Clay

Silt

Sand

Loam

The anthropogenic mode of deposition is materials moved by

Humans

Wind

Animals

Glaciers

Morainal deposition occurred how long ago

1000-2000 years ago

Last week

10,000-12,000 years ago

100,000-200,000 years ago

The study of soils influence on living things especially plants is called

Pedogogy

Dirtology

Pedology

Edaphology

The pgm of a soil directly determines the

Texture and stratification of materials

Aggregation and bedding

Colour and organic matter content

Topography and vegetation types

Fine textured materials from the soil surface that move downwards is called

Addition

Losses

Transformation

Translocation

What type of deposition is from a flowing river

Eolian

Lacustrine

Fluvial

Alluvial

Which climate type below would have the highest weathering rates

Cold and wet

Hot and wet

Cold and dry

Hot and dry

OM forms faster and greater under which vegetation type

Mixed forest

Grasslands

Deserts

Forests

Which of the following will cause the greatest amount of translocation of soil

Humans

Squirrels

Coyotes

Badgers

Secondary minerals are the only ones that can be

Translocate

Transform

Be added

Be lost

How old are western canada soils

100,000 years

10,000 years

1000 years

100 years

Soil horizon layers from top to bottom

B,C,A

A,B.C,D

A,B,C

O,L,F

Great groups are determined by

Horizon thickness

Dominant formation process

Horizon arrangement

Major soil properties

To determine the bulk density of a soil we need to place it in an oven for 48 hours at this temperature

97 C

105 C

100 C

110 C

Soils of similar texture may still have different chemical and physical properties

True

False

Which are soil texture sizes smallest to largest

Clay - silt - sand

silt - sand - clay

Sand - silt - clay

Clay- more clay- even more clay

Clays that form a platy structure on top of B horizon would have

Yellow orange color

Grey green to grey blue color

Light grey in color

Brown to black color

Soils that stay saturated most of the year would have

Yellow orange colour

Grey green to grey blue colour

Light grey colour

Brown to black colour

Which soil texture would have the greatest number of large pore spaces

Clay

Sand

Loam

Sandy loam

Pressure potential is created in the field by

Ponded water

Wheel traffic

Surface tension creep

Water on hilltops

What kind of soil structure would you most likely find in an agricultural topsoil

Columnar

Platy

Blocky

Granular

The higher this is the greater the amount of water holding capacity there is

Porosity

Water holding cpacity

Permanent wilting point

Aggregation

The term soil structure refers to

Something constructed out of soil

The arrangement of soil particles

The proportion of sand, silt and clay

The weight that a soil can support

Soil matric potential is when water moves from a high solute concentration to a low solute concentration

True

False

A volumetric water content can be converted to a gravimetric water content using the soil's

Mean particle diameter

Bulk Density

Pressure differential

Particle Density

How a soil reacts to mechanical manipulation is described by which property

Aggregation

Texture

Consistence

Porosity

What kind of soil structure would you most likely allow water infiltration deep into the soil profile

Platy

Blocky

Prsimatic

Granular

Which is true of soil water potential

All soil textures share the same relationship between water potential and water content

Sand always has a higher water content than clay for a given potential

The value is always negative

The value is always positive

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