27.1 Flashcards
(42 cards)
What is the difference between weathering and erosion?
weathering is the breakdown of materials, erosion is the removal of surface material.
When the slope of a river decreases what happens to rivers speed?
It also 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 earths surface creating____?
Channels.
What shape do young rivers carve on earths surface due to the fast movement?
V-shape.
What type of rivers are wide with smooth and gentle slopes?
Mature rivers.
When rivers flood and drop their sediment load what type of land form is created?
Flood-plains.
What is a fan shaped sediment deposit that forms at the mouth of a river?
Deltas.
What are ditributaries?
branching channels created by deltas.
What are the two types of glaciers?
Valley glaciers and continental glaciers.
Where do valley glaciers come from?
High mountainous regions.
Where do continental glaciers come from?
colder climates and occupy large land areas.
Where are the two continental glaciers located?
Greenland and Antarctica.
What is a cirque?
A bowl shaped basin.
What is a arete?
A long sharp ridge line that is formed between two valley glaciers.
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 beat into large glaciers.
What type of valleys do tributary glaciers form?
they create hanging valleys.
on which side of the dune does erosion occur?
Windward side
On which side does deposition occur?
Leeward side
what is deflation?
the removal of small particles by wind, leaving heavier particles behind.
