Scsc 301 exam 2 - Study guides, Class notes & Summaries
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SCSC 301 Tamu Exam 1 with Questions and Answers
- Exam (elaborations) • 53 pages • 2024
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SCSC 301 Tamu Exam 1 with Questions and Answers 
 
Chapter1 The Soils Around Us: Why is soil important? ANSWER 5 major functions: 
1. medium for plant growth 
2. support for buildings and roads (engineering medium) 
3. habitat for organisms 
ication of waters and regulator of water supplies 
ling system for nutrients and organic wastes 
 
Medium for plant growth ANSWER -physical support 
-supply mineral nutrients 
-hold water (plants require a continuous stream of water to maintain photosynthes...
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SCSC 301 Exam 1 with Questions and Answers
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SCSC 301 Exam 1 with Questions and Answers 
 
Soils in Texas ANSWER There are 255 distinct soils in Texas 
Texas has a variety of types of soil 
 
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 
 
Medium for plants growth ANSWER Physical support 
Supply mineral support 
Holds water → plants require a continuous...
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SCSC 301 - EXAM 3 with Questions and Answers
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SCSC 301 - EXAM 3 with Questions and Answers 
 
Name the eight most abundant elements in soils; be able to order their percentage compositions in rock versus soils, surface versus subsoil, and coarse versus fine particles. ANSWER 1. Oxygen (O) 
2. Silicon (Si) 
3. Aluminum (Al) 
4. Iron (Fe) 
5. Calcium (Ca) 
6. Sodium (Na) 
7. Potassium (K) 
8. Magnesium (Mg) 
 
-Ordered from increasing to decreasing in abundance 
-Oxygen, iron, calcium, potassium and magnesium are all essential for plant growt...
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SCSC 301 TAMU Exam 2 Howe Questions With Complete Solutions
- Exam (elaborations) • 8 pages • 2023
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Which of the following is NOT a carbon-containing compound that is involved in the cycling of carbon associated with most plant/animal life forms? correct answer: Calcium carbonate 
 
Which organic matter property affects the availability of nutrients to plants? correct answer: Cation exchange capacity 
 
Complete degradation of residues (complete oxidation) results in correct answer: CO2 
 
Which of the answers below represents an immobilized form of N? correct answer: Protein in a bacteria...
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SCSC 301- SPRING 2024 Exam with Questions and Answers
- Exam (elaborations) • 9 pages • 2024
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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...
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SCSC 301 TAMU Exam 2 Questions With Complete Solutions
- Exam (elaborations) • 4 pages • 2023
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p - plow 
 
t - clay 
 
g - glade colors 
 
o - oxides 
 
k - calcium carbonate 
 
o_ - indicates organic horizon 
 
y - gypsum (calcium sulfate) 
 
z - salts 
 
h - humis 
 
s - sesquioxides 
 
(A) epipedon - Mollic, Umbric, Melanic, Ochric 
 
(O) epipedon - Histic 
 
(E) epipedon - Albic 
 
(Bw) epipedon - Cambric 
 
(Bt) epipedon - Argillic 
 
(Bo) epipedon - Oxic 
 
(Bhs) epipedon - Spodic 
 
(Bk) epipedon - Calcic 
 
(Bkm) epipedon - petrocalcic 
 
(By) epipedon - Gypsic 
 
(Bym) epipedon -...
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SCSC 301 Exam 3 with Latest Questions and Answers
- Exam (elaborations) • 5 pages • 2024
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SCSC 301 Exam 3 with Latest Questions and Answers 
 
Soil Colloid ANSWER organic and inorganic matter with very small particle size and a correspondingly large surface area per unit of mass; observe with electron microscope; adsorb cations and water and have surface charge 
 
Surface Charge ANSWER most soils negatively charged; net charge 
 
Crystalline Structure ANSWER atoms repeat themselves in a specific order 
 
Tetrahedra ANSWER linked together in a sheet, all tetrahedra in the sheet point ...
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SCSC 301 Exam 2 – Howe verified answers 100%2023
- Exam (elaborations) • 15 pages • 2023
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SCSC 301 Exam 2 – Howe verified answers 100%2023
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scsc 301 exam 2 tamu smith verified answers 100% passed
- Exam (elaborations) • 9 pages • 2023
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scsc 301 exam 2 tamu smith verified answers 100% passed
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SCSC 301 TAMU Exam 2 Howe verified answers 100%2023
- Exam (elaborations) • 6 pages • 2023
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SCSC 301 TAMU Exam 2 Howe verified answers 100%2023
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