CREATE TABLE "table1_15555661_2" (
  "ecozone" text,
  "area_km" real,
  "percentage_of_total_area" text,
  "percentage_of_land_area" text,
  "percentage_protected" text
);

Question: What is the percentage of land area in the ecozone that the percentage protected is 7.96?
SQL: SELECT "percentage_of_land_area" FROM "table1_15555661_2" WHERE "percentage_protected"='7.96';

Question: What is the percentage of total area in the ecozone that the percentage of land area is 2.2?
SQL: SELECT "percentage_of_total_area" FROM "table1_15555661_2" WHERE "percentage_of_land_area"='2.2';

Question: What is the  percentage of total area in the ecozone that the percentage protected is 8.06?
SQL: SELECT "percentage_of_total_area" FROM "table1_15555661_2" WHERE "percentage_protected"='8.06';

Question: What is the  percentage of land area in the ecozone that the percentage protected is 15.28?
SQL: SELECT "percentage_of_land_area" FROM "table1_15555661_2" WHERE "percentage_protected"='15.28';

Question: How large is the Boreal Shield in km2?
SQL: SELECT COUNT("area_km") FROM "table1_15555661_2" WHERE "ecozone"='Boreal Shield';

Question: What is the percentage of total area in the ecozone that the area is 1782252 km2?
SQL: SELECT "percentage_of_total_area" FROM "table1_15555661_2" WHERE "area_km"=1782252;