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Test Name : Earth and Environmental Sciences ☰ 1:28:38 Question 9: COMPREHENSION Read the following unedited passage and identify the INCORRECT/ILLOGICAL statements from the alternatives below. The variability of wind as a power generation source makes necessary proper study, and particularly its behavior close to the surface in order to be able to characterize and forecast it with proper accuracy, allowing an efficient coordination regarding energy generation as well as a safe use of the electric grid. This work is a first approach to the study of the atmospheric boundary layer and its behavior in a coastal context for help with the development of a better wind power forecast. First, study the effect of the surface by calculating the friction, the heat transport and quantifying then their effect depending on the direction by calculating the Monin-Obukhov length. A. Proper study of wind makes it possible to control its variability and ensure efficient power generation. B. This study is the first attempt at understanding the atmospheric boundary layer and its behavior in a coastal context in order to aid development of better wind power forecasts. C. The effect of the surface was studied by calculating friction and heat transport and quantifying their effect depending on the direction by calculating Monin-Obukhov lengths. D. Studying the behavior of wind power generation close to the surface is necessary for characterizing and forecasting it with good accuracy. Less

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Test Name : Earth and Environmental Sciences ☰ 1:28:29 Question 10: COMPREHENSION Read the following unedited passage and pick the incorrect statement(s) among the options provided. Damage caused by debris flows occurs during the transportation of material and in deposition zones. Study on the material properties and their relationship with the debris flow characteristics is lacking. In the previous studies, researchers have attempted to identify the relationship between the engineering properties of material and debris flow traits. If a debris flow has a larger mean particle diameter, more coarse grains are contained in a debris flow, and the flow has higher kinetic energy. If the plasticity index of the soil is low, which is occur when the difference between the plastic limit and liquid limit is small, the soil may quickly change from semi solid to liquid state. This may cause huge decrease in the cohesion and angle of internal friction which can lead to slope instability. Other studies have identified that the increase in soil moisture content may contribute to debris flow occurrence by the development of pore pressure in the soil. A. There have been some attempts to determine how material properties affect debris flow traits, but none to determine how they affect debris flow characteristics. B. The mean particle diameter of debris flow depends on the kinetic energy of the flow, and such flow has a higher proportion of coarse grains. C. A lower plasticity index corresponds to a smaller difference between the plastic limit and liquid limit, and soil with low plasticity index may pass from the semi-solid to the liquid state rapidly. D. In some previous studies, researchers have used the development of pore pressure in the soil to identify that increase in the moisture content of soil results in debris flows. Less