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