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Q1:1. Explain why bulk density is higher in coarse-textured (sandy) soils compared to fine-textured (silt, clay) soils. If it helps to include a diagram to support your answer, please do so.See Answer
Q2:2. ChatGPT is an amazing tool, but has its limitations. Below is the response of ChatG PT to the question "Why do sandy soils have higher bulk densities than clay soils?" Highlight and explain the errors in this ChatGPT response. The differences in particle size and packing characteristics between sandy and clay soils are the primary reasons for the variation in bulk density. Sandy soils have larger particles and looser packing, resulting in more extensive pore spaces and higher bulk density, while clay soils have finer particles and denser packing, leading to less pore space and lower bulk density. These differences in bulk density can have significant implications for soil properties, water retention, and plant growth.See Answer
Q3:3. Diagram the structure of a water molecule, label the atoms in the molecule, and identify locations of the partial '+' and partial regions. Diagram one water molecule adhering to a soil particle surface and a second molecule cohering to the first. Make sure orientations of these water molecules are correct.See Answer
Q4:4. Identify and briefly define/describe at least five very important behaviors or properties of water that arise from its polar nature. You should draw on learnings from sections on soil water and soil temperature to answer this question.See Answer
Q5:5. Why are we interested in characterizing the potential energy status of water at any given point in the soil-plant-atmosphere continuum? Ultimately, what is the driving force or the most significant water potential term along this continuum? Explain.See Answer
Q6:6. Explain/discuss two real-world implication of water movement in stratified soils (i.e., soil profiles with horizons that have different soil textures and hydraulic conductivities).See Answer
Q7:9. Calculate the gravimetric water content (water content by weight, or em) of this soil ing water/g dry soil, or %.See Answer
Q8:10. Calculate the bulk density (Db) of the sample. Is this a good bulk density? Explain.See Answer
Q9:12. Calculate the equivalent depth of water (De) in a 100 cm depth of this soil.See Answer
Q10: 2:44 PM Tue Mar 26 < Back to Content .... Background III learning.k12.com < 3 76% ..... Print Download > Ecosystems are not necessarily remote places such as mountains, forests, and other exotic places. You live in an ecosystem. You can probably find one or more analyzable ecosystems just by stepping out your door. Ecosystems are defined by their limits, so pick an ecosystem you can study and define its limits. You may, for example, choose a park in the town you live in. You do not have to go to every place in that park to define its limits and study its biotic and abiotic factors. Part 1: Select an ecosystem to study and define its limits during the lesson Field Study: Ecosystems 1. Procedure 1. Select an ecosystem that you can get to easily and that has limits you can easily define. 2. Bring a notebook large enough to take notes, draw maps, and make sketches. Take some pictures that document your findings (these will be required for your report). 3. Name the ecosystem and describe it in your notebook. 4. Describe the location and limits of the ecosystem. It may be useful to draw a map. You may also note the latitude and longitude of the ecosystem if you have access to a global positioning system (GPS). 5. Note that nearly all ecosystems are open systems. Write down any examples you notice of energy or matter entering or leaving the ecosystem. 6. Answer Question 1 in the Field Study Report. Part 2: List and comment on the abiotic factors in your chosen ecosystem during the lesson Field Study: Ecosystems 2. Procedure 1. List all the abiotic factors you can observe or infer in your chosen ecosystem, including soil, rocks, bedrock, temperature, water, topography, and the amount of sunlight. You may use the table below, but do not restrict yourself to these factors. Bodies of water Rock types Soil types Unique features Climate varia (temperature precipitation, 2:44 PM Tue Mar 26 < Back to Content III learning.k12.com Print ..... Download 76% Part 2: List and comment on the abiotic factors in your chosen ecosystem during the lesson Field Study: Ecosystems 2. Procedure 1. List all the abiotic factors you can observe or infer in your chosen ecosystem, including soil, rocks, bedrock, temperature, water, topography, and the amount of sunlight. You may use the table below, but do not restrict yourself to these factors. > Bodies of water Rock types Soil types Unique features Climate varial (temperature, precipitation, 2. Do some research on the Internet to find the names of soil and types of rocks and bedrock in the area. 3. Use the Internet to find the average rainfall and seasonal temperatures and add those to your report. 4. Draw a map of the topography of the area. Include any water standing in or flowing through the ecosystem. 5. Answer Question 2 in the Field Study Report. Part 3: List and comment on the biotic factors in your chosen ecosystem during the lesson Field Study: Ecosystems 3. Procedure 1. List all the biotic factors you can observe or infer in your chosen ecosystem, including plants, animals, fungi, bacteria, and other kinds of organisms. You may use the table below. You may add additional rows, since you will almost certainly describe more than four organisms. Biotic factor Name Attributes Sketch/Photo 2:44 PM Tue Mar 26 < Back to Content III learning.k12.com < ..... 3 76% Print Download Part 3: List and comment on the biotic factors in your chosen ecosystem during the lesson Field Study: Ecosystems 3. Procedure 1. List all the biotic factors you can observe or infer in your chosen ecosystem, including plants, animals, fungi, bacteria, and other kinds of organisms. You may use the table below. You may add additional rows, since you will almost certainly describe more than four organisms. Biotic factor Plant types Animal types Fungi/bacteria Other Name Attributes Sketch/Photo 2. Use a field guide or the Internet to identify any organisms you don't know the names of. If identify an organism, draw a sketch or take a photograph of it and add it to your notebook. 3. Answer Question 3 in the Field Study Report. Analyze Answer Question 4 in the Field Study Report thoroughly. > you cannot 2:45 PM Tue Mar 26 < Back to Content .... III learning.k12.com 3 75% Print Download > Field Study Report Answer each question, using complete sentences. When you have finished, submit this assignment to your teacher by the due date for full credit. (20 points) 1. In two to three paragraphs, name your ecosystem, tell where it is (including state and nearest town), state its limits, discuss why defining limits is important, and include any data you collected during your study of the physical limits of the ecosystem. Explain why this ecosystem is an open system. You MUST include photographic evidence of your investigation of the ecosystem as well as a map of the area. Be clear, thorough, and scientifically accurate. Answer: Score (10 points) 2. In one to three paragraphs, list and discuss all the abiotic factors you noted in your study. Include but do not limit yourself to temperature, precipitation, soils, and water flow. Be clear, thorough, and scientifically accurate. Include maps that show abiotic conditions, such as local soils, if possible. Answer: Score 2:45 PM Tue Mar 26 < Back to Content ||| learning.k12.com Print 3 75% Download to meo purnyruptio, not CITY MIO LITO སཅIVIS I༥པ་པ་པ དཅས ༔དཔ་པས "༔ དཅ༥༔ study. Include but do not limit yourself to temperature, precipitation, soils, and water flow. Be clear, thorough, and scientifically accurate. Include maps that show abiotic conditions, such as local soils, if possible. Answer: Score (10 points) 3. In one to three paragraphs, list and discuss all the biotic factors you noted in your study. Include animals, plants, and other organisms. Be clear, thorough, and scientifically accurate. Answer: (10 points) Score Your Score of 50 4. In one to three paragraphs, describe dynamic changes that have occurred in the ecosystem you Score chose. Consider whether your ecosystem is degraded, restored, or neither, and list organisms that were once in the ecosystem but are no longer there. Answer: © Stride, Inc. All rights reserved. >See Answer
Q11: In the table below fill in the plastic limit for each soil sample. According to the plastic limits the has a higher clay content. Based on the information above which soil is more cohesive?See Answer
Q12: Several questions that will follow involve analyzing and interpreting the particle size distribution curves for the North and South sides of the Prime Minister's residence on the provided blank particle size distribution graph. You must download the particle size distribution graph, plot the sieve data from the North and South sides of the PM's residence ON THE SAME GRAPH. You must also determine the percent of each grain size from your completed curves and record them in the appropriate space below the graph. Once you have completed both of these tasks, upload your COMPLETED graph here. You can upload as an image or document file but please makes sure that both curves are labelled and the text is legible or it will not be graded. Again, you will need these data for other questions in this lab.See Answer
Q13: You have also obtained some Atterberg Limit data for portions of each of the soil samples. Plot the data on the plasticity chart below. See Answer
Q14: Please fill out the following table after you have completed calculating the soil parameters. ONLY ENTER NUMBERS, NO % signs or other text should be entered in the table. See Answer
Q15:Describe the main causes of regional metamorphism? For the toolbar press LTSee Answer
Q16: Two plastic-limit determinations had water contents of 23.1% and 23.6%. Determine the LL, PI, the flow index, and the toughness index. The flow index is the slope of the water content versus log of number of blows in the liquid-limit test, and the toughness index is the PI divided by the flow index. See Answer
Q17: Laboratory testing was performed on two soil samples (A and B) and the data is summarized in the table. Determine the USCS classification for samples A and B. Use log interpolationas necessary. Particle size analysis and Atterberg limits were performed for Soils C and D. Results are given in the following table. Classify Soils C and D according to the AASHTO system.See Answer

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