Weathering
Temperature changes, animal actions, and plant growth are all agents of what type of weathering?
Physical Weathering
A stream that empties into a body of water in a fan-shaped pattern is known as what landform?
Delta
What is Erosion?
What is the process of moving sediment from one place to another by wind, water, ice, or even gravity.
The lowest horizon in soil, which is where all weathering begins is known as________________.
Bedrock
A plants roots can grow in the cracks of rock and break the rocks physically. Lichen and Moss can break down rocks chemically with the acids on their roots.
After weathering occurs, what is left over from the rocks that have been broken down?
Sediment
Which of the following are erosion processes?
A. Mass Movements.
B. Rocks abrading other rocks.
C. Currents and waves changing a shoreline.
D. Movement of sediment by wind.
A, C, and D
Abrasion is a form of physical weathering
Define weathering?
Weathering is the process of breaking down and weakening Earth's crust into sediment.
Explain humus.
Decayed plant and animals found in topsoil.
Name 2 formations by deposition that can protect the coastline from storms?
Sand Dunes and Barrier Islands (also Sand Bars.)
Georgia's red clay soil is the result of what specific type of weathering.
Reaction with oxygen, oxidation
Mounds of wind-deposited sand that form along shores of lakes and oceans are known as what landform?
Dunes
What is abrasion?
A type of physical weathering that occurs when one rock breaks down another rock into sediments.
What is a diagram showing all layers of soil in a particular climate?
A soil profile
Explain how a sea cave can form near the ocean?
Waves of water wear away softer, weaker parts of rock over time to form a cave.
What specific type of weathering causes rocks that have tumbled in moving water to become smooth?
Abrasion
Explain how glaciers contribute to deposition.
As glaciers melt, they drop materials that it carried.
Extremely slow movement downslope is know as___________.
Creep.
What is a layer of soil, which has different physical properties?
A soil horizon
What forms U shaped valleys in mountainous areas?
The erosion by alpine glaciers.
State why some rocks are weathered more easily than other rocks.
Softer rocks are weathered more easily than harder rocks; some rocks react with acids, some rocks are more porous.
While driving on vacation, you noticed large rocks and boulders that blocked passage. This is an example of what type of erosion?
Rapid mass movement by gravity.
When a stream flows onto a flat land surface from mountains or hills, what landform is created?
Alluvial fan.
Explain the difference between bedrock and parent rock.
Parent rock is slightly weathered bedrock.
Which type of climate would have the slowest rate of chemical weathering? (humid or dry/cold or hot?)
Cold and Dry.