Roles of Soil Quiz

What is one way soil supports human activities?

• Supporting human settlements

• Destroying human settlements

• Ignoring human settlements

• Reducing human settlements

Which factor involves plants, animals, and microscopic organisms interacting with soil?

• Time

• Parent Material

• Biological

• Climate

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Which factor of soil formation is affected by slope and aspect?

• Biological

• Topography

• Climate

• Parent Material

What stage is humus in?

• Initial growth

• Full decomposition

• A stage of decomposition

• Mineralization

What is the color of the A-Horizon compared to the layers below?

• Lighter

• Darker

• Redder

• Whiter

Why is the A-Horizon important for plant growth?

• It is the driest layer

• It contains the most nutrients

• It is the hardest layer

• It is the least stable layer

Tags

NGSS.MS-LS1-5

What is the E-Horizon commonly referred to as?

• The "Leaching Layer" Horizon

• The "Topsoil" Horizon

• The "Bedrock" Horizon

• The "Organic" Horizon

At what depths is the C-Horizon typically found?

• 10-20 feet

• 20-30 feet

• 30-48 feet

• 50-60 feet

Which of the following is NOT a feature of the C-Horizon?

• Contains large rocks

• Rich in organic matter

• Least changed since origin

• Found at depths of 30-48 feet

How does soil formation begin?

• A) By the accumulation of gases

• B) Through the decay of plants

• C) By the breakdown of rocks

• D) By evaporation of water