Soils Question Preview (ID: 7306)
PH, Textures, Profiles And Horizons.
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What are the three basic soil particles?
a) sand, silty loam, clay loam
b) silt, sand, loam
c) sand, silt, clay
d) sandy loam, silt, clay
Which soil particle is smallest?
a) loam
b) silt
c) sand
d) clay
What is the largest soil particle?
a) sand
b) silt
c) clay
d) loam
What is considered a "perfect" soil?
a) sand
b) loam
c) silt
d) clay
What pH is neutral?
a) 2.5
b) 7.5
c) 7
d) 14
Which soil pH is considered acidic?
a) 2.5
b) 7.5
c) 7
d) 14
Which soil is considered basic or alkaline?
a) 2.5
b) 7.5
c) 7
d) 14
How is soil formed
a) Breakdown of decomposed materials
b) Breakdown of rock and mineral materials along with decomposing materials that can grow plants
c) material that allows plant growth
d) eroded rock and minerals only
Which is the correct order of soil horizons?
a) ABCD
b) BCA
c) CBA
d) ABC
Topsoil is made of
a) organic materials
b) loosely packed soil
c) organic materials and loosedly packed soil
d) IDK
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