Exam 3 questions
The _______ is liquid and is responsible for producing Earth's magnetic field
Outer core
Which of the following statements best describes seawater?
Seawater is a sollution
_________ dunes are the largest in size and have multiple slip faces produced by winds from varying directions
Star
Folded layers of rock can form a wavelike pattern of troughs and crests. The layers (i.e., downward fold) form
a syncline
After a geomorphic threshold is crossed, the landscape
adjusts to a new equilibrium condition
Earth's magnetic poles
are migrating approximately 60 km (37 mi.) per year
Which dunes are crescent shaped, with the horns pointing downwind
barchan
Seawater with less than 3.5% salinity is termed
brackish
When the height of a wave exceeds its vertical stability (what happens to waves at shore) the wave is called a
breaker
A large region where a craton is exposed at the surface is known as
continental shield
The term eolian refers to
erosion, transportation, and deposition by the wind
The weathering process responsible for breaking this granite slab is likely
frost wedging
The ability of the wind to move materials
is small compared to other transporting agents, such as water and ice
Landscapes formed by the dissolution of limestone and other carbonate rock, characterized by pitted, bumpy surface
karst topography
When the Sun and Moon form a right angle with Earth, the ________ occurs and results in the ________ tidal range.
neap tides; lowest
In most areas, the upper surface of bedrock is partially weathered to broken-up rock called
regolith
The transport of small sand particles (.07 to .20 mm) along the ground in bouncing and skipping action is known as
saltation
What type of rock is derived from the bits and pieces of former rocks
sedimentary
A slow, persistent mass movement of surface soil is called
soil creep
The principle that landscape formation is balance between endogenic and exogenic processes is called
the dynamic equilibrium model
An earthquake is best described as
the sharp release of energy in the Earth's crust that creates seismic waves
Which of the following is an endogenic process
volcanism
Distinctive, elongated wind-sculptured formations are called
yardangs
The worldwide average salinity of seawater is
3.5%