AGRICULTURAL SCIENCE SS1 - Quiz
  • 1. The hard unweathered rock layer is known as
A) Horizon K
B) Horizon R
C) Horizon I
D) Horizon S
  • 2. Soil profile is best described as
A) horizontal section of soil
B) soil texture
C) soil structure
D) vertical section of soil
  • 3. Limestone is an example of
A) Sedimentary rock
B) Igneous rock
C) Metamorphic rock
D) Volcanic ash
  • 4. The process by which rocks break down to form soil is called
A) Weathering
B) Erosion
C) Compaction
D) Sedimentation
  • 5. Rocks are best defined as
A) liquid materials in the soil
B) decayed plants
C) solid materials made of minerals
D) organic farm materials
  • 6. Simple farm tools are mainly operated by ______
A) Hand
B) Engine
C) Electricity
D) Battery
  • 7. Which rock is formed from magma?
A) Metamorphic
B) Igneous
C) Limestone
D) Sedimentary
  • 8. Soil formation is the process by which soil develops from
A) fertilizers
B) Limestock
C) parent rocks
D) Soils
  • 9. Which of the following is NOT a type of weathering?
A) Biological
B) Physical
C) Chemical
D) Mechanical cultivation
  • 10. The downward movement of soluble minerals in soil is called
A) leaching
B) deposition
C) erosion
D) weathering
  • 11. The soil horizon richest in humus is
A) Horizon S
B) Horizon K
C) Horizon A
D) Horizon B
  • 12. Marble is formed from
A) Sandstone
B) Granite
C) Basalt
D) Limestone
  • 13. The major components of soil do not include
A) Water
B) None of the above
C) Organic matter
D) Mineral matter
  • 14. Soil texture refers to the
A) Arrangement of soil particles
B) Depth of soil
C) Size of soil particles
D) Colour of soil
  • 15. Which soil property affects water retention?
A) Salinity
B) pH
C) Texture
D) Colour
  • 16. Clay soil is best described as
A) ticky when wet
B) Well drained
C) Poor in nutrients
D) Loose and gritty
  • 17. Horizon R is
A) Parent material
B) Bedrock
C) Organic layer
D) Topsoil
  • 18. ___ tool is used for gathering and leveling soil
A) Cutlass
B) Rake
C) Hoe
D) Axe
  • 19. Horizon O
A) Bedrock
B) Organic layer
C) Topsoil
D) Parent material
  • 20. ____ is the ability of soil to retain water for plant use
A) Texture
B) Porosity
C) Water holding capacity
D) Structure
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