CREATE TABLE fires (fire_year DECIMAL, discovery_date DECIMAL, discovery_doy DECIMAL, discovery_time TEXT, stat_cause_code DECIMAL, stat_cause_descr TEXT, cont_date TEXT, cont_doy TEXT, cont_time TEXT, fire_size DECIMAL, fire_size_class TEXT, latitude DECIMAL, longitude DECIMAL, owner_code DECIMAL, owner_descr TEXT, state TEXT, county TEXT, fips_code TEXT, fips_name TEXT)

How many acres burned in 2000s and 1990s?
SELECT SUM(fire_size) FROM fires WHERE state = "TX" AND fire_year BETWEEN 2000 AND 2010 UNION SELECT SUM(fire_size) FROM fires WHERE state = "TX" AND fire_year BETWEEN 1990 AND 2000
SELECT SUM("fire_size") FROM "fires" WHERE "TX" = "state" AND "fire_year" <= 2010 AND "fire_year" >= 2000 UNION SELECT SUM("fire_size") FROM "fires" WHERE "TX" = "state" AND "fire_year" <= 2000 AND "fire_year" >= 1990