Soil Physical Properties

What are the components of soil?

• Only biotic components

• Only abiotic components

• Both abiotic and biotic components

• Neither abiotic nor biotic components

Why do humans and terrestrial ecosystems depend on soils?

• For air

• For water

• For food and resources

• For sunlight

What is soil described as in the text?

• A simple system

• A complex system

• An artificial system

• A static system

What is the primary function of soil in agriculture?

• To provide sunlight

• To provide a growing medium

• To provide air

• To provide heat

What is one of the key roles of soil in the environment?

• To block sunlight

• To support plant growth

• To absorb sound

• To generate electricity

Which of the following is a component of a soil system?

• Plastic

• Metal

• Air

• Glass

Which component of a soil system is primarily responsible for its structure?

• Air

• Water

• Mineral Particles

• Organic Material

Which of the following is a type of sediment that can be a parent material for soil?

• Clay

• Gravel

• Sand and silt

• Pebbles

Which soil type has the highest percentage of clay?

• Sandy Loam

• Silty Clay

• Clay

• Loam

If a soil sample contains 40% sand, 40% silt, and 20% clay, what is its soil texture classification?

• Sandy Loam

• Loam

• Clay Loam

• Silty Clay Loam