ch 27.2 Flashcards
what is the difference between weathering and erosion?
weathering is the break down and erosion removes surface material
if the slope of the river decreases what will happens to the rivers speed
decreases
what are small streams called that flow in larger rivers?
trubutaries
what is a land area that gathers water for major river is called?
drainage basin
what is a district damage basins called that separates?
drainage divide
as water flows downhill under the influence of gravity, water erodes earths surface creating
channels
young rivers are due to the first movement
v-shaped
blank rivers are wide with smooth and gentle slopes
mature
what type of land form is created when a rivers flowed and drop there sediment load
flood plains form along the valley sides
what is created when a fan-shaped sediment deposit will form at the mouth of the river
deltas
what are distributaries
are the branching channels created by deltas
what are the two types of glaciers
valley glaciers and continental
where do valley glaciers form?
high mountain regions
where do continental glaciers form?
form colder climates and occupy large land areas
where are the two continental?
Greenland and Antarctica
what is a cirque?
bowel shaped basin
what is an arete?
form where two adjacent valley glaciers meet and erode a long. sharp ridge line
what is a horn in a mountainous region?
sharpened peaks
what shape of valley do valley glaciers form?
they create u shaped valleys
what are tributary glaciers?
small glaciers that feed into the large glaciers
what type of valleys do tributary glaciers form?
hanging valleys
which side of a sand dune does the erosion occur
windward
which side does deposition occur on
leeward side
what is deflation
removal small particals by wind
what causes desert pavements
small particles are removed the remaining surface
shape and sizes of land forms depend on what
wind speed
amount of time the wind blows
sediment supply
what are three land forms created by wave erosion
coastal cliffs
sea arches
sea stacks
what two land form are created from wave deposition
sand bars
sand spits
what is sand bars
what is a sand spits
sandbars expanded that extend into the water from land and curve back toward land in a hook shape
what are some things that can cause mass wasting
snow
heavy rains
earth quakes
human activilty
what are some examples of mass wasting
rock slides
mudflows
landslides
