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15
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What shape valley does a young river make?
V-shaped.
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banana
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rocket
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gift
Win 15 points!
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thief
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25
15
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What helps shape the sides of a V-shaped valley?
Weathering and mass movement.
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25
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What is abrasion in a river?
Stones and rocks carried by the river scrape the riverbed and banks.
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15
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What is weathering?
The breaking down of rocks where they are.
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thief
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seesaw
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fairy
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baam
Lose 20 points!
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15
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Name one feature in the youthful stage of a river.
V-shaped valley.
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10
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What is solution in a river?
When minerals dissolve in the water and are carried away.
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25
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What is biological weathering?
Plants or animals breaking down rocks eg. roots
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15
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What is attrition?
Stones in the river smash into each other and become smoother and smaller.
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What is erosion?
The wearing away and moving of rocks by rivers, wind, ice
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25
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How do glaciers cause erosion?
By plucking rocks and scraping the land.
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heart
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seesaw
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fairy
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lifesaver
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What is the main difference between weathering and erosion?
Weathering breaks rocks down erosion moves them away.
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heart
Other team wins 20 points!
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fairy
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25
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gift
Win 10 points!
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banana
Go to last place!
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15
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Why are V-shaped valleys narrow and steep?
River cuts downwards.
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