SSC 200 exam III NCSU Exam #1 Questions with Correct Answers
What's unique about a 2:1 - ✔✔2 tets and 1 oct
1:1? - ✔✔1 tet and 1 oct
Iron/ Al oxides ? - ✔✔low CEC capacity, common in highly weathered soils (oxisols)
humus? - ✔✔High CEC, enhances soil fertility
what is permanent charge - ✔✔Occurs from isomorphic substitution and is formed in the
phyllosilicates via Mg or Fe substitution for Al in the octahedral lattice. Mg for Al in tet
What is pH dependent charge? - ✔✔Temporary charge
define flocculation - ✔✔Individual particles stick
together to form aggregates of
particles or floccules. Such aggregates do not move in the soil solution and form
the basis for soil structure.
define dispersion - ✔✔Aggregates do not form
Each particle behaves as an
individual.
Without aggregation, water,
air, and root movement in the
soil is inhibited.
Dispersion is not a desirable
characteristic of productive
, soils.
what is a phyllosilicate - ✔✔or sheet silicates, are an important group of minerals
what is an aggregate - ✔✔particles of soil that make up a mass of soils sort of
17 essential plant nutrients - ✔✔Mn CuZn Mo Mg CHOPKiNS CaFe B Cl at Ni (my cousin moe
manages chopkins cafe but closes at night) magnesium, copper zinc, molybdenum, manganese,
carbon, hydrogen, oxygen, phosphorus, potassium, nitrogen, sulfur, calcium, iron, boron,
chlorine, nickel
Structural - ✔✔Carbon
Hydrogen
Oxygen
Primary Macronutrient - ✔✔Nitrogen
Phosphorus
Potassium
(NPK fert bags)
Secondary Macronutrient - ✔✔Calcium
Magnesium
Sulfur
Micronutrient - ✔✔Iron
Manganese
Boron
Zinc
What's unique about a 2:1 - ✔✔2 tets and 1 oct
1:1? - ✔✔1 tet and 1 oct
Iron/ Al oxides ? - ✔✔low CEC capacity, common in highly weathered soils (oxisols)
humus? - ✔✔High CEC, enhances soil fertility
what is permanent charge - ✔✔Occurs from isomorphic substitution and is formed in the
phyllosilicates via Mg or Fe substitution for Al in the octahedral lattice. Mg for Al in tet
What is pH dependent charge? - ✔✔Temporary charge
define flocculation - ✔✔Individual particles stick
together to form aggregates of
particles or floccules. Such aggregates do not move in the soil solution and form
the basis for soil structure.
define dispersion - ✔✔Aggregates do not form
Each particle behaves as an
individual.
Without aggregation, water,
air, and root movement in the
soil is inhibited.
Dispersion is not a desirable
characteristic of productive
, soils.
what is a phyllosilicate - ✔✔or sheet silicates, are an important group of minerals
what is an aggregate - ✔✔particles of soil that make up a mass of soils sort of
17 essential plant nutrients - ✔✔Mn CuZn Mo Mg CHOPKiNS CaFe B Cl at Ni (my cousin moe
manages chopkins cafe but closes at night) magnesium, copper zinc, molybdenum, manganese,
carbon, hydrogen, oxygen, phosphorus, potassium, nitrogen, sulfur, calcium, iron, boron,
chlorine, nickel
Structural - ✔✔Carbon
Hydrogen
Oxygen
Primary Macronutrient - ✔✔Nitrogen
Phosphorus
Potassium
(NPK fert bags)
Secondary Macronutrient - ✔✔Calcium
Magnesium
Sulfur
Micronutrient - ✔✔Iron
Manganese
Boron
Zinc
