Insulating and sealing up your house can save you ______.

Inthe1930’s,whenmillionsofcomicbookswere（）theyoungwithfightingandkilling,nobodyseemedtonoticethattheviolenceofcarsinthestreetswasmorehysterical. A: inundating B: imitating C: immolating D: insulating

37. ___ A: A fuel that bums cleanly. B: An oil additive that helps cool engines. C: A material from which filters are made. D: An insulating material sprayed on engine parts.

Nights in deserts are cold because A: winds originate at the North and South poles B: the relative humidity is very high C: there is a poor insulating effect from the desert and the dry air D: nights are cloudy E: the ocean currents prevent humidity