WorksheetsSoils Week 3
Total questions: 17
Worksheet time: 9mins
The layers of contrasting material found when one digs a hole in the ground are called______.
Pedons
Horizons
Regoliths
Stratifications
This is called a
Amoeba
Tardigrade
Nematode
Bacteria
What is the rhizosphere?
The first foot of soil that contains the most microorganisms
The area close to the root that contains the most microorganisms
The interface between the surface of the soil and the soil iteself
The living zone of the earth
Plants are
Autotrophs
Heterotrophs
Herbivores
Detritivores
Subsoil is equivalent to the
A horizon
B horizon
C horizon
E horizon
Topsoil is equivalent to the
A horizon
B horizon
C horizon
O horizon
Saprophytes are
Pathogenic to plants
Parasitic to plants
Decomposers
Plant symbionts
Organic soils
Form underwater
Are another name for loam
Form under grasslands
Have high mineral content
Alluvial soils are
transported by water
Leached of clays and chemicals
Transported by gravity
Form at the base of slopes
These microorganisms can live on plant roots and fix nitrogen
Bacteria
Protozoa
Mycorrhizal fungi
Nematodes
Which of the following is a factor in soil creation? (Check all that apply)
Parent material
Time
Climate
Life
Topography
In this picture, what is the light colored band?
A horizon
B horizon
C horizon
E horizon
O horizon
What is being created in this picture?
Igneus rock
Metamorphic rock
Sedimentary rock
True or False? Tilling speeds up the loss of organic matter from the soil
True
False
Which is the cutest microorganism?
________________are single-celled microbes, some live in root nodules of legumes and fix atmospheric nitrogen to a nutrient form usable to plants
Nematodes
Fungi
Amoebas
Bacteria
_______________ are multi-celled organisms that predominate in forest soils and break down leaves and wood. They can be saprophytic, parasitic or symbiotic. If symbiotic, they are called mycorrhizae.
Amoebas
Fungi
Rotifers
Bacteria
