Soil #4

Property of soil that describes it as being smooth or rough.

• texture
• luster
• color
• water holding

Process by which sediment is moved from one place to another by wind or water is called:

• Evaporation
• weathering
• precipitation
• erosion

Which is a property of sandy soil that might affect its use in agriculture?

• it's absorbent-it can drown the plants
• it has too many harmful chemicals
• sand has clay in it--too hard for plants to grown in
• sand is porous--which may allow nutrients to get carried away when water goes through it.

Which component of soil has the lowest permeability to water?

• clay
• grass
• sand
• silt

Which horizon is normally called the subsoil?

• Horizon A
• Horizon B
• Horizon C
• Horizon O

Which horizon layer consists largely of decaying plant and animal life?

• Horizon A
• Horizon B
• Horizon C
• Horizon O

Name a similarity between soil on Earth and on the Moon?

• Roots hold the soil together.
• Rain causes both soils to erode.
• Both soils include various minerals.
• Footprints will stay forever.

Name of the soil type that has a balance of all three components is...

• Loam
• Loamy Sand
• Silty Clay
• Silt Loam

Name a difference between the soil on Earth and on the Moon.

• With no rain on the Moon, only soil on Earth erodes by rain.
• Only soil on the moon has footprints on it.
• There are no differences--the soil is the same.
• Lunar soil is made of minerals.  Earth's soil is not.

Humus is...

• decayed organic matter
• a loose mixture of small rock fragments, organic matter, water and air