Chpt 5 Flashcards
T or F mountain slopes have more fertile soil than river valleys
False river valleys are more fertile
T or F dunes form where wind is strong and soil is wet
False where soil is dry
T or F wind and water are powerful agents that change earth
True
T or F fiat land is more prone to mass wasting than billed land
False - hilled land is more prone
T or F heavier particles travel more than lighter ones when moved by wind and water
False- lighter travel further
Soil scooped out by wind is ______
Deflation hollows
Large mass of moving ice is _____
Glacier
Removal of material by wind water or ice is _____
Erosion
Mound of till is _____
Moraine
Wearing down of rock by chemical process _____
Chemical weathering
Wearing down rock surface by other rocks
Abrasion
Surface feature of place or region ________
Topography
Loose layer of rock and soil _______
Regolith
Downhill movement
Landslide
Breaking down of rock by physical process ?
Mechanical weathering
Carbon combining with other substances?
Carbonation
Left behind by glaciers?
Till
Describe 3 processes or mechanical weathering
Ice wedging - water seeps into cracks and freezes and then expands breaking the rock
Temperature extremes- rocks expand in heat and contract in cold
Living things- trees force rocks to split
Describe 3 processes of chemical weathering
Hydrolysis- chemical interaction with water on rocks
Carbonation - carbonic acid and other minerals form substances
Oxidation - chemicals combing with oxygen (rust)
3 factors that determine how fast rocks weather
Type of rock - sedimentary softer than igneous and metamorphic
Surface area- smaller rocks weather faster
Climate - higher rainfall means faster weathering
3 forces lead to erosion of material
Wave action
Glacier ice
Avalanches
*Flood control question *
Pavement
Landslide question
All of above
Most easily weathered
Sedimentary