| 1 |
Which factor is considered a major driver of land cover change contributing to landslides in the Chattogram District?
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Hill cutting and unplanned urbanization |
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The study states in its introduction that "Hill cutting, expansion of brick kilns, hill soil collection for brick kilns, agricultural activities on hill slopes, unplanned urbanization, and human migration to hilly areas are the major drivers of land cover change in the hilly areas of Bangladesh." |
The factors were stated in the study's introduction. |
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| 2 |
What does the ROC value for a model indicate in the context of this study?
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The accuracy of the model in predicting landslide susceptibility |
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The study states that "The ROC curve consists of both x and y-axis in a diagonal plotting area. In the x-axis false positive rate is plotted and in the y-axis true positive rate is plotted." meaning that it is a measure of the precision of the model. |
The study states that "The ROC curve consists of both x and y-axis in a diagonal plotting area. In the x-axis false positive rate is plotted and in the y-axis true positive rate is plotted." meaning that it is a measure of the precision of the model. |
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| 3 |
According to the study, what percentage of the Chattogram District's area is highly susceptible to landslides?
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9-12% |
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The abstract of the study states "The LSMs showed that almost 9–12 % of areas of the Chattogram district are highly susceptible to landslides." |
It is stated in the abstract of the study. |
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| 4 |
How are the logistic regression model's coefficients used in landslide susceptibility mapping?
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To calculate the exact time of landslide occurrence |
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The paper states "The coefficients [of the logistic regression model] are calculated based on the inherent relationship between the dependent and independent variables where landslides are the dependent variables and the conditioning factors independent variables. The corresponding values of the independent variables are used to ascertain the probability of an independent variable (landslides)." |
It is implied that the coefficients in the logistic regression model are used to determine the chances of a landslide occurring, thus the time it could happen. |
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| 5 |
What is the importance of the Stream Density factor according to the Random Forest model in the document?
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One of the top five most important factors |
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The paper states that "the random forest model demonstrated that geology is the most important variable (42.153 %), followed by TRI (20.143 %), elevation (19.036 %), stream density (15.670 %) and Slope (13.212 %)" |
The paper states the top 5 most important variables in the random forest model. |
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| 6 |
According to the document, which machine learning model showed the highest success rate in training data?
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Decision and Regression Tree |
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In the conclusion of the study, it states that "The accuracy of LR, RF and DRT models were 0.943, 0.917 and 0.947 respectively for success rate." |
The decision and regression tree had the highest success rate. |
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| 7 |
What is the primary geological characteristic of the Chattogram District that contributes to landslide susceptibility?
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| 8 |
How do land use and land cover (LULC) changes influence landslide occurrences in the Chattogram District?
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They increase landslide risk due to deforestation and construction |
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The paper mentions that, although other factors are more impactful, LULC has an impact to landslide susceptibility, |
The paper states that LULC increases the risks of landslides. |
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| 9 |
What percentage of total variance is explained by the first factor in the factor analysis discussed in the document?
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19.06% |
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The abstract in the document states "Factor 1 explains 19.06 % of the total variance." |
The paper states that the first factor explains 19.06% of the total variance. |
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| 10 |
According to the factor analysis, which factor is related to the cost and sufficiency of manure?
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Factor 3: Correlation between manure sufficiency and expenses (cost) |
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It's in the name of the factor. |
As it has sufficiency and expenses in the name of the fact, it is likely the correct answer. |
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| 11 |
According to the factor analysis, which factor is related to the cost and sufficiency of manure?
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Factor 3: Correlation between manure sufficiency and expenses (cost) |
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It's in the name of the factor. |
As it has sufficiency and expenses in the name of the fact, it is likely the correct answer. |
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| 12 |
What is the Kaiser-Meyer-Olkin (KMO) measure of sampling adequacy reported in the document?
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0.607 |
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The paper states that "As can be seen in Table 4, Kaiser-Meyer-Olkin test (KMO) value statistics were calculated as 0.607." |
The document reported that they calculated a KMKO of 0.607. |
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| 13 |
Which of the following statements best describes the contribution of Factor 2 in the factor analysis?
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It is related to soil analysis and plant nutrient utilization. |
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Factor two is named “Soil analysis and plant nutrient utilization” in the paper. |
As choice 3 is a direct copy of the name of the factor given by the paper, it is likely correct. |
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| 14 |
Which factor is primarily associated with limitations in the utilization of chemical fertilizer and manure according to the document?
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Factor 4 |
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Factor 4 is named “Limitations in the utilization of chemical fertilizer and manure” |
Factor 4 is named “Limitations in the utilization of chemical fertilizer and manure” |
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| 15 |
What is the percentage of variance explained by all four factors together?
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51.295% |
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The abstract of the paper states "These 4 factors explain 51.29 % of the total variance." |
The abstract of the paper states this value of variance of all four factors. |
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| 16 |
What is the highest mean value for the propositions used in the factor analysis, according to the document?
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2.814 |
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The document states that "The average levels of participation of the farmers in the propositions vary between (A9 = 2.814; A1 = 1.108)." |
The answer is likely the upper bound of the range that was given by the document. |
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| 17 |
What was the minimum magnitude for the factor loads considered for interpreting the analysis results in the factor analysis?
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0.30 |
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The document states "The minimum magnitude of the factor loads should be 0.30 (Barnes et al., 2001)." |
It is given in the document. |
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| 18 |
According to the document, how many factors were initially considered before deciding on the final number?
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None of the above |
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I couldn't find the number of factors that were initially considered before deciding on 4. |
I couldn't find the number of factors that were initially considered before deciding on 4. |
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| 19 |
Which method was used for rotation in the factor analysis described in the document?
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Varimax |
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The abstract of the paper states "The principal component method and varimax rotation were used in factor analysis." |
The abstract clearly states that varimax rotation was used in the factor analysis. |
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| 20 |
Based on the factor analysis, how is Factor 1 defined in the document?
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Chemical fertilizer and manure utilization level and efficiency perception |
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Factor 1 is named "Chemical fertilizer and manure utilization level and efficiency perception" |
Factor 1 is named "Chemical fertilizer and manure utilization level and efficiency perception" |
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