In the northern and central parts of the state of Idaho _ and churning rivers.(A) majestic mountains are found(B) are majestic mountains found(C) are found majestic mountains(D) finding majestic mountains16. The flight instructor, _ at the air base, said that orders not to fight had been issued.(A) when interviewed (B) when he interviewed(C) when to interview(D) when interviewing15. According to Bernoullis principle, the higher the speed of a fluid gas, _ the pressure.(A) it will be lower(B) lower than the(C) the lower(D) lower it is14. Researchers have long debated _ Saturns moon Titan contains hydrocarbon oceans and lakes.(A) over it(B) whether the(C) whether over(D) whether13. The population of Houston was ravaged by yellow fever in 1839 _ in 1867.(A) it happened again(B) and again(C) was ravaged again(D) again once more12. Thunder occurs as _ through air, causing the heated air to expand and collide with layers of cooler air.(A) an electrical charge(B) passes an electrical charge(C) the passing of an electrical charge(D) an electrical charge passes11. The Wilmington Oil Field, in Long Beach, California, is one of _ oil fields in the continental United States.(A) productive(B) the most productive(C) most are productive(D) productivity10. (A) sports are involved(B) involved in sports(C) they are involved in sports(D) sports involve them9. Sports medicine is a medical specialty that deals with the identification and treatment of injuries to persons _. The Caldecott Medal, _ for the best childrens picture book, is awarded each January.(A) is a prize which(B) which prize(C) which is a prize(D) is a prize8. _ a tornado spins in a counterclockwise direction in the Northern Hemisphere, it spins in the opposite direction in the Southern Hemisphere.(A) However(B) Because of (C) Although(D) That7. Evidence suggests that one-quarter of operations _ bypass surgery may be unnecessary.(A) they involve(B) involve(C) involving(D) which they involve6. February normally has twenty-eight days, but every fourth year, _ has twenty-nine.(A) there(B) its(C) is a leap year(D) a leap year, it5. (A) a vertical distribution of power(B) power is distributed vertically(C) vertically distributed(D) the distribution of power is vertical4. A federal type of government results in _. Carnivorous plants _ insects to obtain nitrogen.(A) are generally trapped(B) trap generally(C) are trapped generally(D) generally trap3. _ range in color from pale yellow to bright orange.(A) Canaries(B) Canaries which(C) That canaries(D) Canaries that are2.
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