Scsc 301 exam 1 - Study guides, Class notes & Summaries

SCSC 301 Exam 1 (Graded A Plus) with Questions and Answers After a growing season of heavy tillage traffic across a soil, a soil property that is affected is: ANSWER bulk density From a biological point of view, the most important role of structural development in fine textured soils is to provide an increase in: ANSWER macro porosity The purity of light reflected by a soil is called: ANSWER chroma A word used to describe the consistence of soil is: ANSWER firm In a soil, having a...

SCSC 301 Exam 1 Review questions with correct answers

SCSC 301 EXAM 1 activities Questions With Complete Solutions What are the corresponding colors with the associated soils? __1__ colored soils come from organic matter. __2__ colored soils come from iron and aluminum oxides. __3__ colored .___ and ___ oxides are the *most resistant* to weathering. - ANSWER-Fe and Al ____ describes the unconsolidated debris overlying the lithosphere, composed of the O, A, E and B horizons. A. parent material B. solum C. regolith D. soil - ANSWER-...

SCSC 301 Exam 1 Questions With Complete Solutions .5 Major Soil Functions - ANSWER-1. Medium for Plant Growth 2. Support for buildings and roads 3. Habitat for organisms 4. Purification of waters and regulator of water supplies 5. Recycling system for nutrients and organic wastes .5 Soil Forming Factors - ANSWER-Climate (Active Factor) Biota (Active Factor) Parent material (Passive Factor) Topography (Modifying Factor) Time (Passive Factor) .A horizon - ANSWER--topmost minera...

SCSC 301- SPRING 2024 Exam with Questions and Answers A soil having a pH of 8.0, 20% exchangeable sodium, and 5 dS conductivity is: ANSWER saline, sodic The most economical means of decreasing the soil pH from 7.0 to 4.5 in a non-calcareous soil is: ANSWER sulfur With the passage of time, the soil pH tends to: ANSWER decrease The compound that can be used as an agricultural liming material is: ANSWER CaCO3 Calcium Carbonate reacts with the carbonic acid in the soil solution to for...

Loess correct answer: Silt to very fine sand. Deposited by the wind. Volcanic ash correct answer: Soils of very low bulk density and high fixation of phosphorus. Glacial till correct answer: Poorly sorted. Glacial wash correct answer: Well sorted. Texture correct answer: The size distribution of inorganic (mineral) primary particles. Silt correct answer: .05-.002 mm in diameter USDA correct answer: Who is our final say on particle diameter of soils? Permeability corre...

SCSC 301 Exam 3 Questions With Correct Answers .12 ft deep peak of temp - ANSWER-About Oct. Nov. .9 steps in rock to soil development - ANSWER-1. physical disintegration 2. chemical alteration 3. changes in mineral distribution 4. formation of secondary minerals 5. appearance of higher plants 6. development of soil structure 7. leaching of bases 8. downward movement of clay 9. Fe/Al oxides are the remaining minerals .A horizons - ANSWER-topmost mineral horizon with some organic matter ...

After a growing season of heavy tillage traffic across a soil, a soil property that is affected is: correct answer: bulk density From a biological point of view, the most important role of structural development in fine textured soils is to provide an increase in: correct answer: macro porosity The purity of light reflected by a soil is called: correct answer: chroma A word used to describe the consistence of soil is: correct answer: firm In a soil, having a color of 10YR 4/1, th...

What are the corresponding colors with the associated soils? __1__ colored soils come from organic matter. __2__ colored soils come from iron and aluminum oxides. __3__ colored soils come from silicates and salts. correct answer: 1 --- BLACK 2 --- RED 3 --- WHITE What are the 4 main components of soil and what are their relative proportions to the composition of soil? correct answer: Mineral matter -- 45% Organic matter -- 5 % Soil Water -- 25% Soil Air -- 25% Which 2 ele...