CAT 1 SOIL SCIENCE

What are the primary processes involved in the formation of soil from rock?

• Erosion and deposition

• Physical, chemical, and biological weathering

• Crystallization and melting

• Metamorphism and sedimentation

What percentage of typical soil is composed of mineral particles?

• 5%

• 25%

• 45%

• 75%

Which soil horizon is commonly referred to as topsoil?

• O horizon

• A horizon

• B horizon

• C horizon

Which type of soil allows water to drain through it the fastest?

• Sand

• Silt

• Clay

• Loam

What is considered the ideal soil type for growing crops?

• Clay

• Silt

• Sand

• Loam