Geog Final Exam
A ___________ lake is the result of a meandering river having cutoff a meander bend leaving an abandoned channel.
Oxbow
Which of the following is true of loess deposits?
They are formed of fine-grained clays and silts
The Hjulmstrom curve explains erosion, transport and deposition based on water velocity
True
As the discharge of a stream increases, which of the following also happens?
Width, depth, and velocity all increase.
Which of the following may act as a fluvial base level?
a lake that a river flows into, sea level
The sandblasting action of wind-blown particles is called
abrasion
In a trophic food pyramid, with increasing levels biomass _______ and energy ________.
decreases; decreases
The removal and lifting of individual loose particles by the wind is termed
deflation
A stream's flow rate is called its
discharge
Watersheds are defined by
drainage divides
The term eolian refers to
erosion, transportation, and deposition by the wind.
An ecosystem represents the relationship of species with their environment T or F
false
Where does erosion primarily occur along meandering rivers?
floodplains
Steam-related processes are termed
fluvial
The complex chain of interdependencies is called a
food web
The place where an organism lives is called its?
habitat
As tropical rain forest is cleared by humans, the amount of ___________ available for organisms to live in is decreased, and this reduces the populations of plants and animals living there—thereby affecting plant and animal ________.
habitat; communities
Relative to dune movement and form, a dune's slipface forms on which side?
leeward side
The smallest features shaped by individual saltating grains are
ripples
Primary productivity refers to __________ and is greatest in __________.
the rate at which plant growth occurs; tropical rain forests
Photosynthesis involves
the union of carbon dioxide and water under the influence of sunlight, and the release of oxygen
Which of the following is incorrect regarding biomes?
they are usually named for the specific climatic zone in which they occur
Rocks that appear pitted and grooved, and sometimes polished smooth by eolian processes, are termed
ventifacts
Which of the following correctly describes a dry stream bed that is intermittently filled with water (flash flood)?
wash
Which of the following lists of river processes are in the correct sequence as to their occurrence in nature?
weathering, erosion, transport, and deposition
Elongated, streamlined ridges aligned parallel to the most effective wind direction are called
yardangs
The degradation of a landscape by weathering, erosion, and transportation will ultimately reduce the landscape down to
base level
the study of spatial aspects of ecology and the distribution of plants and animals is called
biogeography
Carbon dioxide is produced by all of the following except
plant and animal respiration
Stream transport of materials involves all of the following except
sheet flow
Stream drainage patterns are determined by which of the following?
slope, differing rock resistance, climatic and hydrologic variability