Soil and soil dynamics Version 2

Which of the following is a type of weathering that breaks down rocks and minerals?

• Chemical

• Mechanical

• Biological

• Permeable

Soil formation begins with the weathering of_______.

• Humas
• Subsoil
• Litter
• Rock

The layer of soil in which the topsoil is found.

• Horizon A

• Horizon B

• Horizon C

• Horizon D or R

Soil is important because it intersects with all of the following:

• Lithosphere, Hydrosphere, and the Earth

• Water, Animals, and Plants

• Lithosphere, Atmosphere, and Plants

• Lithosphere, Atmosphere, Biosphere, and Hydrosphere

Of the three phases of soil, which of the following 2 phases are about equal percent in soil?

• Mineral and Air

• Mineral and Water

• Water and Air

• Air and Organic

The particle size of soil can tell us about the _______ of the soil.

• quality

• porosity

• weathering

• horizons

The rinsing of the topsoil from the Earth is called_________.

• Chemistry

• Irrigation

• Weathering

• Erosion

Salinization of soil is an increase in _____ in the soil.

• salt

• water

• organic material

• sand

Topsoil is the best soil layer for growing plants.

• True

• False

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Which horizon or soil layer is made up of subsoil with only a few organics?

• Horizon A

• Horizon B

• Horizon C

• Horizon E