35. Electric lamps came into widespread use during the eariy 1000 replaced once-popular type of fat, gas, or oil lamps for almost every purpose. A B C D 36. Located in Canada, the Columbia Icefield covers area of 120 square miles and is B A 3,300 feet thick in some places. TviO 2oie abaoob C D 37. Composer Richard Rodgers and lyricist Oscar Hammerstein II brought to the musical allivieM oecmnoH A Oklahoma! extensive musical and theatrical backgrounds as well as familiar with the C d B traditional forms of operetta and musical comedy. D aha 38. Although traditional fiutes are among the world's oldest musical instruments, but the 0 09nel B tong To yodmt odt of bosh A flute used in orchestras today is one of the most technically sophisticated. C D 10oeo to auoilim abnid boeoleyo is te ybd ondes 39. Rice, which it still forms the staple diet of much of the world"'s population, grows B A nd aue best in hot, wet lands.