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WorksheetsSoil Genesis and Classification Quiz
Total questions: 15
Worksheet time: 8mins
What is soil composed of?
Mineral and organic materials, living forms, and air
Only water
Only organic materials
Only minerals
What is geology the study of?
The hydrosphere
The earth's crust and formation of rocks
The atmosphere
The biosphere
Which phase is NOT a part of soil?
Liquid phase
Solid phase
Gaseous phase
Plasma phase
What type of rocks are formed from cooling magma?
Sedimentary rocks
Metamorphic rocks
Igneous rocks
Organic rocks
Which of the following is an example of sedimentary rock?
Limestone
Basalt
Granite
Gneiss
What is the process of breaking down rocks called?
Erosion
Weathering
Compaction
Sedimentation
Which mineral is a primary mineral found in soils?
Quartz
Clay
Calcite
Gypsum
What is humus?
A soil layer
A mineral
Decomposed organic matter
A type of rock
Which factor does NOT influence soil formation?
Time
Climate
Topography
Color
What is the top layer of soil called?
A Horizon
C Horizon
B Horizon
O Horizon
What is leaching?
The process of soil formation
The process of soil erosion
The process of removing minerals from soil
The process of adding nutrients
Which of the following is a biological process in soil formation?
Hydrolysis
Nitrification
Frost action
Weathering
What does the term 'regolith' refer to?
Unconsolidated soil material
A type of rock
A soil layer
Organic matter
Which horizon is characterized by clay accumulation?
C Horizon
B Horizon
A Horizon
O Horizon
What is the main source of nitrogen in soil?
Minerals
Air
Water
Organic matter
