Show a complete 360-degree scan of the work area, computer table and keyboard, under  and around the work area/table and the entire room on camera. Count slowly to 30 out loud as you scan to make sure it’s not rushed. Show the work area clearly. The work area should be clear (no books and other electronic devices) except for scratch paper, calculator, pen/pencil. You may have done the room scan before entering the exam already. Please repeat it.  All cell phones must be powered off and kept away from the testing area but visible on camera to ensure that you are not using it during the test. Using or checking phones or other electronic devices during the test is not permitted.  Please ensure your webcam is positioned to provide a clear, unobstructed view of your entire face, hands, and desk area as shown in the sample image in the exam 4 announcement in canvas. Your full face must be visible at all times, and your eyes should remain focused on the screen throughout the exam, except when using scratch paper.  Show that all other electronic devices are turned off and kept out of reach including additional monitors in the room. Students should simulate classroom testing condition by taking each exam at a desk or table. Tests should not be taken on a bed, couch, or other informal setting. A clear and well-lit image of the student’s face must be fully visible, and all sounds must be clearly audible at all times. You must also follow the instructions provided in the online exam guidelines document throughout the exam. Make sure, before beginning the exam, all additional applications are closed, with the exception of Google Chrome or approved assessment materials. On Mac computers, this can be done by selecting the Apple icon at the top left of the screen and choosing Force Quit, while Windows users can close applications by right clicking the application icon and selecting Close. Failure to follow any of these instructions will result in grade zero for the exam. Did you follow all the instructions?  

Which of the following diseases are related to poor nutrition habits? SELECT ALL THAT APPLY

Given that brushite has a log(Ksp) of 0.63, Do you predict that brushite will or will not be stable in the soil from the previous question?

Match the types of organic matter with the types of fresh detritus or other residue from which they would most commonly be derived from or found in (i.e. their dominant origin)

Which concentrations or other variables will increase or decrease following flooding?

Sort the minerals in order of increasing surface area (1=smallest surface area)

Sort the molecules according to their longevity in soil (1 = shortest lasting; 4 = longest lasting). Assume all other factors are equal.

Water found in the pores of a soil has the following properties: Negligible ionic strength (activity = concentration) a constant pH of {pH} (Ca2+) = 10{Ca} M total P = 10{P} M Given the dissolution reaction of brushite is written: CaHPO4·2H2O(s)   +  H+ (aq)  ⇄   Ca2+(aq) +  H2PO4– (aq) +  2H2O   …and that H3PO4 has a pKa2 of 7.21, calculate log(IAP) (same as log(Q)) of the reaction, and save your answer for the next question.

Which of the following will you adjust to make changes to the radiographic contrast?

Which of the following would be considered an intentional artifact on a radiograph? Select all answers that are correct below.