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
Not a force that makes erosion
Year round coldness
Water responsible for mechanical weathering
Temperature
Essay how would you address cottage building question
Eroding dunes isn’t good for the earth and building on sand isn’t good for cottages
Cutting down tree essay question
Mass wasting would affect the houses and buildings more than trees
T or F shore erosion increases during storms
True
