This type of mechanical weathering is caused by freezing and thawing
What is ice wedging?
100
This forces moves sediment in a landslide or a mudflow.
What is gravity?
100
This land feature is sediment that is deposited where a river flows into an ocean or lake
What is a delta?
100
This type soil conservation allows for dead weeds and stalks of the previous year's crop to the left in the ground to retain moisture and hold the soil in place
What is conservation plowing?
100
You would probably find the most decomposers in this soil layer or horizon
What is A horizon?
200
The growth of plant roots and animal activity may result in this type of weathering
What is mechanical weathering?
200
The process by which natural forces move weathered rock and soil from one place to another
What is erosion?
200
How you spell where the agents of erosion, deposit, or lay down sediment
What is D-E-P-O-S-I-T-I-O-N?
200
When earthworms add their wastes to the soil, then die and decay in the soil, they are contributing to the formation of what
What is humus?
200
Contour plowing
What is the practice of plowing fields along the curves of a slope?
300
This type of climate will cause weathering to occur rapidly
What is hot and wet climate?
300
Landslides, mudflows, creeps, and slumps are all examples of what type of erosion.
What is mass movement?
300
Wind carrying sand grains deposits the sand when the wind does what
What is speed up?
300
This soil horizon is the last of the horizons to form.
What is C Horizon?
300
The principal stating that the same processes that operate today also operate in the past.
What is uniformitarianism?
400
The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles
What is abrasion?
400
A stream or a river that runs into another stream or river
What is a tributary?
400
Bacteria and fungi in the soil that breaks down dead plants and animals.
What are decomposers?
400
This is how the sediment of the Earth's surface wears down, moves, and builds up
What is the cycle of weathering, erosion, and deposition?
500
The most important factors in determining the rate of weathering
What are rock type and climate?
500
Where a river flows from an area of harder rock to an area of softer rock, the softer rock may wear away, eventually forming a drop
What is a waterfall?
500
This continuous cycle wears down and build up the Earth's surface
What is weathering, erosion, and deposition?
500
When the bedrock is exposed at the surface and it gradually weathers into smaller and smaller particles what begins to form.
What is soil?
500
The shedded leaves of plants that form a loose layer on the top of horizon A