Q1. Build a query that produces a list of the station numbers from every row in the relation (hint: 28000 rows, 1 column)
Q2. Build a query that produces a list of unique station numbers in the relation (hint: 6368 rows, 1 column)
Q3. Build a query that produces a list of all tuples ("rows") from the year 1992 where there was any snow depth reported (hint: 54 rows)
Q4. Build a query that produces a list of all tuples where it the temperature was outside of the range of 0-100 (inclusively) (hint: 1093 rows)
Q5. Build a query that produces a list of unique station numbers that have reported a temperature over 100 (hint: 7 rows, 1 column)