CREATE TABLE table_10638523_1 (shivalik_zone VARCHAR2, mid_hill_zone VARCHAR2)

What is the percentage of the Shivalik Zone where the percentage of the Mid-Hill Zone is 10%?
SELECT shivalik_zone FROM table_10638523_1 WHERE mid_hill_zone = "10%"
SELECT "shivalik_zone" FROM "table_10638523_1" WHERE "10%" = "mid_hill_zone"