Soil Unit Test

Horizon A is also known as (a)  

• Top soil
• Bedrock
• Subsoil
• Organic material

The B Horizon is known as (a)  

• Parent Rock
• Top soil
• Bedrock
• Subsoil

The C Horizon is known as (a)  

• Top soil
• Organic material
• Parent Material
• Bedrock

What are layers of soil that differs in color and texture from the layers above or below it called?

• soil horizons

• soil

• organic matter

• decomposers

What is the name of any material produced originally by living organisms (plant or animal) that is returned to the soil and goes through the decomposition process?

• organic matter

• soil horizons

• decomposers

• subsoil

Tags

NGSS.MS-LS2-3

What is the gradual process of movement and transport of the upper layer of soil (topsoil) by different agents – particularly water, wind, and mass movement – causing its deterioration called?

• weathering

• erosion

• deposition

• organic matter

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

What is the process of accumulation of sediments by either physical or chemical sedimentation called?

• weathering

• erosion

• deposition

• abrasion

What is occurring when frozen precipitation falls over an area and seeps into small cracks in rocks and other materials. As the ice and snow begin to melt, it liquifies and pools into these crevices, and then refreezes at night?

• ice wedging

• weathering

• chemical weathering

• mechanical weathering

Tags

NGSS.MS-ESS2-2

What is the name of the process of weathering by which physical processes break down a rock to fragments, involving no chemical change?

• weathering

• ice wedging

• chemical weathering

• mechanical weathering

What is the name of the weathering processes that cause changes to the chemical composition of the rock?

• ice wedging

• abrasion

• chemical weathering

• depositon