Which of the following statements concerning the 79 CE eruption of Mount Vesuvius (which buried Pompeii and Herculaneum) is FALSE?

Which of the following statements concerning the impacts of past historic volcanic eruptions is FALSE?

All the following are necessary for a limnic eruption (like those that killed many people living along some African lakes), EXCEPT:

Which of the following statements concerning the impacts that salt (NaCl) or salt use had on past societies is FALSE?

Consider the following ER diagram, how many tables do you need to create (i.e. database schema) to store all the data and relationships in the diagram? 

ETL (extract, transform, load) is only required when we are combining several sources of data into data warehouse. In another word, when the only source of data for a company’s data warehouse is its operational database, then ETL is not necessary.    

The deletion anomaly refers to a situation where 

Based on the following student-take-course schema:  Student(StudentID: integer, Name: string, Cohort: string, Gender: string) Take(StudentID: integer, CourseID: string, Grade: integer) Course(CourseID: string, CourseName: string) How many rows will the below three queries return? Assuming we have 3 cohorts and 5 courses. Query 1: Select Avg(T.Grade) as AvgGrade from Student S inner join Take T on S.StudentID = T.StudentID; Query 2: Select Avg(T.Grade) as AvgGrade from Student S inner join Take T on S.StudentID = T.StudentID group by T.CourseID; Query 3: Select Avg(T.Grade) as AvgGrade from Student S inner join Take T on S.StudentID = T.StudentID group by T.CourseID, S.CohortID.  

An OTA is discussing leisure activities with an individual who provides brief responses. The OTA should:

During a diabetic education group, an OT practitioner describes what the group will be learning today. In what phase of a group would this MOST LIKELY happen?