chapter 27.2 Flashcards
what is the difference weathering and erosion?
weathering is the break down of materials and erosion is removal of surface material
As the slope of a river decreases what happens to the speed of the river?
decreases
what are small streams called that flow into larger rivers?
Tributaries
what is the land area called that gathers water for a major river?
drainage basin
what is the boundary called that separates distinct drainage basins?
drainage divide
As water flows downhill under the influence of gravity,
water erodes earth´s surface creating _______.
channels
Young rivers are ________ due to the fast movement,
V-shaped
_______ rivers are wide with smooth and gentle slopes
Mature
When rivers flood and drop their sediment load
Flood plains
A fan-shaped sediment deposit will form at the mouth of a river
deltas
what are distributaries
branching channels created deltas
form where the mouth of a river or stream enters dry land
alluvial fans
what are the two types of glaciers?
valley and continental glaciers
where do valley glaciers form?
high,mountainous regions
where do continental glaciers form?
colder climates and occupy large land areas
where do two continental glaciers located?
Greenland and Antarctica
what is a cirque?
bowl shaped basin
what is an arete?
form where 2 adjacent valley glaciers meet and erode a a long sharp, ridge line
what is a horn in a mountainous region?
sharpened peaks
What shape of valley do valley glaciers form?
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
