Clay may be categorized as: Group of answer choices a) A size fraction of the soil. b) A Textural Class. c) A class of minerals d) All of the above e) None of the above
Q: Essential Plant Nutrients Chemical Chemical forms absorbed Element symbol by crop plants Primary…
A: Different mineral nutrients play important roles in the plant body. Plants show certain…
Q: Which element is responsible for causing soil salinity?At what concentration does the soil become…
A: Soil salinity as the term suggests is the salt content of the soil and the term of salinization…
Q: Name the element that causes salinity in the soil.
A: Soil salinity is caused due to an increased concentration of salts in the soil. This process of…
Q: What is composite materials? Describe biomass derived composite materials by picking one biomass.
A: INTRODUCTION Biomass refers to the mass of living beings such as plants, animals, and microbes, as…
Q: What are the destinations of the organic material fabricated by the producers?
A: Producers are autotrophs that are able to synthesize their own food (organic) from raw material…
Q: What are the major exchangeable cations in soils? How do the relative proportions change between…
A: Soil is that the uppermost weathered layer of crust . it's a mix of weathered mineral rock…
Q: What is the temperature at the soil surface?
A: The soil is the complex mixture of minerals, water, air organic compounds and microorganisms.…
Q: Explain a simplified soil profile.
A: Soil can be defined as the powdered form of rocks (that have been weathered by different…
Q: what is the present microorganisms in soft swell spoilage?
A: Canning is a type of food preservation method, which includes the preservation of food in air tight…
Q: What part of the soil is most microbially active?
A: Microbial activity in Soil : Soil microbial activity that reflects microbiological processes of soil…
Q: What are the consequences of soil erosion in urban settings?
A: Soil erosion is the process by which the top layer of soil or soil erodes due to a number of factors…
Q: Which region of soil is the most microbially active?
A: The microbe is a term used for microorganisms like bacteria, fungi, viruses, and protozoans. These…
Q: What are three moistures condition for determining soil consistence
A: The measure of the degree of the cohesion and adhesion between the soil particles describes about…
Q: The figure below shows the percentage of organic matter in a soil as a function of precipitation and…
A: BASIC INFORMATION Soil It is an important factor in the ecosystem because of its various uses. It…
Q: List any two factors which determine the nature of soil?
A: Soil is a source of mineral nutrients for many forms of life. It is made of mineral matter, organic…
Q: How would adding clay to loamy soil affect capacity to exchange cations and retain water? Explain.
A: The overall ability of a soil to retain exchangeable cations is known as cation exchange capacity…
Q: Which are more likely to be leached from the soil by decreasing pH— cations or anions? Explain.
A: Lower pH increases the solubility of aluminum, manganese, and iron in the soil. Anions are leached…
Q: In which type of soil is nutrient leaching a morecommon problem, sandy or clay soil?
A: Ans: Soil Nutrient leaching: It is the process on which the nutrients dissolved in soil move…
Q: What type of soil will have higher percentage of leaching and what could be the causes? *
A: The loose surface layer that covers the majority of land is referred to as soil. It is made up of…
Q: if you are going to prepare 15 plates of Nutrient Agar, 30 NA slants, and 20 NA stabs, how much tap…
A: In usual labs petriplatea can hold 15ml of media therefore for 15plates approximately 15×15 = 225ml…
Q: Which fertilizer is expected to produce acidity in soil?
A: Any material of natural or synthetic origin that is applied to soil or plant tissues to deliver…
Q: What are ways to improve soil quality?
A: Soil fertility depends on three major interacting components: biological, chemical and physical…
Q: Select the following characteristics that clay soils possess. I. Poor aeration. II. Poor drainage.…
A: Option (D) is correct answer. Clay Soils: Clay is a fine grained natural soil material containing…
Q: What Characteristics of Phosphorous minerals makes them suitable to be used as fertilizers?
A: Most common form of phosphorus is Diammonium phosphate and monammonium phosphate,NPK etc. NPKs is a…
Q: Soil could be deficient in any of the following nutrients. If you had to supply one of these to the…
A: Plants require nutrients to grow and soil is the major source of nutrients.There are 17 essential…
Q: 41. What technique is used in industrial farming practices to help reduce soil erosion caused by…
A: INTRODUCTION The effects of commercial farming include diseases and disease transmission, with an…
Q: What is soil conservation?
A: A crop rotation is a planting of different types of plants in the same area according to the season…
Q: Would the particle density of a soil high in organic matter be the same? Higher or Lower? Why?
A: Particle density is expressed as ratio of total mass of solid particles to their total volume and…
Q: We have 2 types of soils. One soil has bulk density of 2.75g/cm^3; second has bulk density of…
A: Bulk density Bulk density is the compaction rate of the soil. It is calculated by dividing dry…
Q: What is the importance of vermicompost application in the improvement of acid soils?
A: Acidic soils can be defined as it is "sour" and acidity is the characteristic of soils that have a…
Q: Isn’t soil just lifeless dirt?
A: ANSWER: No, soil cannot be attributed as lifeless dirt since it is an integral component of the…
Q: In preparing a site for surface mining and later restoration, why wouldengineers separate the…
A: Restoration ecology is a branch of ecology that deals with the restoration of the degraded, damaged…
Q: Why fine textured soil hold more water as compared to coarse textured soils?
A: Soil texture is a term used to refer to types of soil based on their composition in terms of small,…
Q: . Which layer of soil is found above the bedrock and below the topsoil, is brightly colored (usually…
A: There are different types of soil basebd on their composition. There are different layers of soil…
Q: how to prepare salt and sugar solutions as packing media for canned fruits and vegetables?
A: Answer :- To prepare salt and sugar solutions as packing media for canned fruits and vegetables the…
Q: What group of microorganisms dominate unpolluted soil? polluted soil?
A: The soil may include microorganisms such as bacteria, actinomycetes, fungi, algae, protozoa and…
Q: How do you distinguish between humification and mineralisation?
A: The decomposers and transformers are the living components of the ecosystem. Fungi and bacteria are…
Q: 41. Which layer of soil is found above the bedrock and below the topsoil, is brightly colored…
A: There are various soil types, each with its unique set of features. Any soil has layers, or…
Q: An extremely acid soil generally limits the availability of many nutrients in the soil. True or…
A: Soil is the uppermost layer of the earth crust. It is a mixture of rock particles, organic matter,…
Q: . Why was it necessary to make sure that chemicals could not movethrough the soil from one plant to…
A: Researchers perform an experiment on pea plants to know whether drought-stressed plants communicate…
Q: Why is most nitrogen fertilizer added as ammonium ion?
A: Plants are autotrophs. They are called so because they are not dependent on other organisms and can…
Q: Soil could be deficient in any of the following nutrients. If you had to supply one of these to the…
A: NUTRIENTS IN SOIL: For plant growth and development some major and minor nutrients are available in…
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- 9) Which one of the below given properties can not be among the material selection criteria for biomaterials preparation ? a) Mechanical properteis b) Cheap and available c) Water Absorption rate d) Biostability duration7) Which one of the below given properties belongs to ceramic based biomaterials ? a) Easier to shape at any temperature b) May contain organic material portions c) Do not react with the biological enviroment d) Low compressive strength 8) Sort the below given properties for Natural and Synthetic Polymers Can tailor physical, chemical, mechanical and degradative properties Low mechanical properties Non-assurance of pathogen removal Easily mass produced and sterilizedWhich percentage of medical waste is infectious or hazardous? A) 25% B)50% C)75% D) 85%
- All of the following are true about soil microorganismsEXCEPT:(a) They never affect or change the physical characteristicsof their soil microenvironment.(b) They are considered to be a part of the soil.(c) All major microbial taxonomic groups can be found insoil (bacteria, fungi, algae, protists, viruses).(d) Species of the genus Clostridium contain important hu-man pathogens found in soil.(e) They are important as decomposers in the carbon andnitrogen cycles.Growth of microbes in a solid media is identified by the formation of? a) Pellicle at the top of mediab) Coloniesc) Sediment at the bottomd) TurbidityA plate of raw minced meat without seasoning was left at room temperature (25°C). (i) Discuss the spoilage processes by determining THREE (3) potential intrinsic factors that are relevant to the conditions given and predict what would be the type of microorganisms that will initiate the spoilage? Identify THREE (3) preservation methods that could be easily practised at home. (ii)
- Which of the following is not a matching pair?a) Potable water—presence of pathogensb) High BOD—high organic contentc) Stabilized sludge—fertilizerd) Primary treatment—removal of material that settlese) Bulking—growth of filamentous bacteriaAgar is extracted froma) Fungib) Bacteriac) Algaed) VirusIdentify the microorganism/ group of microorganisms involved in the spoilage of the following food: a.. Canned curdled evaporated milk b. Blue cottony growth on oranges
- Filtration does/is NOT...?a) Sterilize heat sensitive liquidsb) Kill microbesc) Sterilize providing pores are exceedingly smalld) Used in preparation of vaccines, vitamins, and drugse) Used to capture microbes in ventilation systems via HEPA filters Which of the following is false?a) Pasteurization does not sterilizeb) Ionization radiation is useful for sterilizing food and pharmaceuticals c) Phenolics can be used as antisepticsd) Isopropyl alcohol can sterilize the skine) Steam autoclaving is an effective means of sterilization Which of the following is not a factor that determines the effectiveness of an antimicrobial agent? a) Time of exposure b) Temperature c) pH d) Concentration of agent e) All of the above are factors that determines the effectiveness of an antimicrobial agent 4. Which of the following is not a specific cell target for antimicrobial agents? a) Capsule b) Cell wallc) Cell membraned) DNA / RNA synthesis e) Protein function 5. Which of the following…a)75% b)0% c)30%All microorganisms require A) carbon, iron, and sodium. B) phosphorus, aluminum, and sodium. C) calcium, potassium, and magnesium. D) phosphorus, nitrogen, and sulfur.