Medium: COUNT the number of counties in Texas where the (measure 83) is not zero or ‘null’.
Difficult: Select all results from results WHERE the number of days with maximum 8-hour average ozone… is greater than 5 days, JOIN table with report.
View: Create a view that shows the top 5 counties with the lowest ambient annual average.
Extra: Select counties in Texas where (measure 83) is not not zero or null.
Trivial: Select all counties in Texas
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