Create an account
a characteristic cone-shaped depositional feature in the desert that usually forms at the mouth of a canyon is known as a(n)
rocks that appear pitted and grooved, and sometimes polished smooth by eolian processes, are termed
the undulating form that gives earth's surface its character and general configuration is called
pulverized rock and clastic materials ejected violently during an eruption are called
tephra, or pyroclastics
drainage density refers to
a measure determined by dividing the length of all the channels by the area of its drainage basin
maximum velocity in a stream is found
at the center and near the surface, corresponding with the deepest parts of the stream channel
near the shore, waves of transition begin to "feel bottom" and, as a result, the orbits of the water molecules in the wave become more _________ . this process eventually causes __________ to form
wave action works to straighten a coast as a wave energy focuses around headlands and tends to disperse energy in coves and bays in a process called
which of the following is correct regarding loess deposits
they are formed of fine-grained clays and silts
an exotic stream is
any river that arises in a humid region and then passes through to an arid region
given present global warming trends and predicted climate change for the next century, sea level is estimated to rise
between .18 -- .59 m (7.1 -- 23.2 in)
uniformitarianism assumes that
the same physical processes we see today are key to understanding the processes that have been operating throughout geologic time
which of the following is correct regarding worldwide sea level
it was about 130 m lower 18,000 B.P., and about 10-20 cm lower 100 years ago or so
the area at the surface directly above the subsurface location where seismic waves are initiated is termed the
consider the equation Q=wdy. according to the equation, if Q (discharge) remains constant, but w and d decrease (as when a channel becomes more narrow and shallow), the velocity will
a rock transformed from any other rock through extreme heat and or pressure is referred to as
limestone is a type of _____ rock that forms when ______
sedimentary; calcium carbonate precipitates, or organic material containing calcium carbonate accumulated in a water environment
composite cones have steep slopes and experience ______ eruptions because they are composed of ______ magma
elongated, streamlined ridges aligned parallel to the most effective wind direction are called
limestone is lithified metamorphic rock, high in magnesium, whereas marble is a sedimentary form
the atacama desert is one of the world's driest regions and is located on the southwest coast of africa
a hypsographic curve is
a generalized curve showing earths surface by area and elevation in relation to sea level
on the desert floor, at locally low elevations, an intermittently wet and dry flat area in a region of closed (interior) drainage is called a(n)
when people go swimming along a coast, they often find themselves, after a while, down the coast from where they first entered the water. they moved downshore because of
which side of a dune typically has a slope angle equal to that of the angle of repose for sand?
which of the following is correct regarding continental drift?
the term "continental drift" is now called plate tectonics
the greatest flow from rivers east of the continental divide in the rockies is into the
when geologists or archaeologists dig downward into a unit of rock or sediment, they are digging "back in time". this fact is based on the principle of
which of the following gives the correct sequence of layers in earth, from surface to the center?
crust, asthenosphere, lower mantle, core
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together