Scsc 301 exam 2 exam - Study guides, Class notes & Summaries

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...

What are the 3 domains of life? correct answer: Archaea, Bacteria, Eukarya What is a soil micro biome? correct answer: A representation of all 3 domains of life ie. microbial community Which domain of life is being described: - Methanogens - Extremophiles - Oldest known organisms correct answer: ARCHAEA Which domain of life is being described: - Cyanobacteria (photosynthetic, O2) - Eubacteria (true) - Abundant and diverse correct answer: BACTERIA Which domain of lif...

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...

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...

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 Exam 2 With Correct Answers .Accumulation of nutrients in ponds, lakes and ground water can lead to—— - ANSWER-Eutrophication .Actinobacteria - ANSWER--Filamentous, forming branching chains -Aerobic heterotrophs, non-acidic, moist, high C environments - produces antibiotics (antimicrobial) -Some fix N especially in forests (Frankia sp.) Microorganism .Adhesion - ANSWER-An attraction between molecules of different substances .Aerobe - ANSWER-an organism that requires ...

SCSC 301 Exam 2 with correct answers.

SCSC 301 Exam 4 Questions With Correct answers .____ and phosphorus interactions in strongly acid soils account, in part, for the low solubility of phosphorus in such soils - ANSWER-iron .____ cannot be used as a liming material. - ANSWER-CaSO4 .____ is a material that can be added to soils to bring about a decrease in pH of 2 or more units - ANSWER-Al2(SO4)2 .____ is not a possible source of available sulfur in soils. - ANSWER-Microbial fixation of the atmospheric form .____ is ...