Soil Science Quiz

What is the definition of soil according to the Soil Science Society of America?

• The study of earthly materials

• A mineral substance that is homogeneous

• The loose organic material on the immediate surface of the earth that serves as a natural medium for the growth of plants

• The part of the earth's crust in which humus is present

What are the three main divisions of rocks?

• Clay, Sand, Silt

• Igneous, Sedimentary, Metamorphic

• Mud, Mineral, Organic

• Granite, Basalt, Limestone

Which type of rock is formed from molten lava?

• Metamorphic

• Igneous

• Granite

• Sedimentary

What is the process of disintegration and decomposition of rocks and minerals under atmospheric conditions called?

• Weathering

• Erosion

• Sedimentation

• Compaction

Which of the following is NOT an agent of physical weathering?

• Wind

• Biological action

• Water

• Temperature

What is the main characteristic of chemical weathering?

• It is a biological process

• It is caused by temperature changes

• It changes the physical form of rocks

• It alters the composition of the rock

Which type of weathering involves the action of organisms?

• Mechanical weathering

• Biological weathering

• Chemical weathering

• Physical weathering

What is the term for the study of soil formation and properties?

• Geology

• Ecology

• Pedology

• Botany

Which of the following is a type of sedimentary rock?

• Limestone

• Basalt

• Granite

• Gneiss

What is the process called when water combines with soil minerals?

• Carbonation

• Hydrolysis

• Oxidation

• Hydration