12 Questions
What is the primary cause of a river's water flow?
The slope of the riverbed
What happens as a river nears its mouth?
The river slows down and drops sediment
What is a delta?
A large area of flat land formed by sediment deposits
Which of the following is a positive effect of flooding?
Depositing nutrient-rich sediment on floodplains
What is weathering in the context of rivers?
The breaking down of rocks into smaller pieces
What is the primary cause of a flash flood?
Heavy rainfall in a short period of time
What is the process of moving weathered rock and soil from one place to another called?
Erosion
What factor can affect the rates of weathering, erosion, and deposition?
Speed of the river
What causes cracks in rocks to widen by the repeated freezing and thawing process?
Water expanding when it freezes
Where are glaciers typically found on Earth?
In the coldest parts of Earth
How do glaciers contribute to erosion?
By pushing broken rock pieces under and on top of them
What happens when liquid water becomes ice due to temperature drop?
It expands and widens cracks in rocks
Explore the formation and characteristics of rivers, including their source, mouth, width, volume, flow, and interaction with hills and mountains. Learn about sedimentation and the process of rivers joining together.
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