Oxide layer that helps control the flow of searing gas & several of them' value $200 answer Pilot light round Jeopardy! Show_number 1170 category U.S.A. Air_date 2000-03-07 question 'This member of the USA's first important novel by this rather by these two words' value null answer Canada round Jeopardy! Show_number 2806 category THE JETS air_date 2005-06-08 question.