Weathering, Erosion, And Soil Formation Question Preview (ID: 48545)


Weathering, Erosion, And Soil Formation. TEACHERS: click here for quick copy question ID numbers.

What soil layer forms last?
a) Bedrock
b) A horizon
c) C horizon
d) B horizon

What soil layer has the most humus?
a) A horizon
b) B horizon
c) C horizon
d) Bedrock

What soil layer is made mostly of clay and minerals?
a) A horizon
b) B horizon
c) C horizon
d) Bedrock

What layer is made of only partially weathered rock?
a) A horizon
b) B horizon
c) C horizon
d) Bedrock

What layer contains the basic building block of soil?
a) A horizon
b) B horizon
c) C horizon
d) bedrock

What is litter?
a) loose leaves and stems
b) all of the living things in the soil
c) trash
d) it can be any of the above

Where is litter located?
a) in the C horizon
b) above the C horizon
c) above the A horizon
d) in the A horizon

What are two ways to prevent topsoil erosion?
a) crop rotation and contour plowing
b) contour plowing and conservation plowing
c) crop rotation and conservation plowing
d) crop rotation and no till

What are the 5 ingredients of soil?
a) air, water, earthworms, minerals, rocks
b) air, water, minerals, rock particles, and leaves
c) humus, air, water, minerals, fertilizer, and rock particles
d) minerals, air, water, humus, rock particles

How can farmers prevent soil exhaustion?
a) plant the crops in circles instead of rows
b) plant the crops using no till
c) use crop rotation
d) use contour plowing

What is the correct order in which the soil horizons form?
a) CAB
b) ABC
c) BCA
d) CBA

How are weathering and erosion different?
a) weathering moves rocks to a new place and erosion creates soil
b) weathering breaks rocks into smaller pieces and erosion creates litter
c) weathering breaks rocks into smaller pieces and erosion carries rocks to a new location
d) weathering and erosion are basically the same thing

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