Table: canadian_provinces_area
Columns: rank
name_and_flag
water_area_km_2
water_area_as_percentage_of_total_area
percentage_of_national_freshwater_area

Question: Which province and flag has a water area (km 2) of 0?
SQL: SELECT "name_and_flag" FROM canadian_provinces_area WHERE "water_area_km_2" = 0