| 1. | The main stream of a river frequently dividing into two or more branches  near its mouth. | 
                
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                  | 2. | The  natural gas  that flows from a well must to be  cleaned and treated before being marketed. | 
                
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                  | 3. | Research in molecular biology has demonstrate phenomenal similarities  between humans and apes. | 
                
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                  | 4. | Among the most important jazz innovators in the twentieth century are being Louis  Armstrong, Fletcher Henderson, Duke Ellington, and Dizzy Gillespie. | 
                
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                  | 5. | Tenant  farmers are those they either rent a farm and work it for  themselves or work the farm for the owner and receive payment. | 
                
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                  | 6. | At  home in  underground tunnels, the mole is active by day and by nightly  throughout the year. | 
                
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                  | 7. | The wood of the mahogany tree is soft enough to be easily sawed, planed,  and carves. | 
                
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                  | 8. | Author Sarah Orne Jewett published  her first story when was nineteen years old. | 
                
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                  | 9. | Fluorine combines with other elements  so readily than any other chemical element. | 
                
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                  | 10. | The  rose, one of the most beautiful of all flowers, is a symbol of fragrance and lovely. | 
                
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                  | 11. | In  times of peace a government may exert pressure on another government, for political or economic reasonings, by means of an  embargo. | 
                
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                  | 12. | Slightly over half of the population of El Paso, Texas, says both English and Spanish. | 
                
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                  | 13. | The  "Little ice Age" was a period of unsettled weather that  has lasted from the mid-sixteenth to the early eighteenth  century. | 
                
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                  | 14. | Jute is  graded in quality according to its color, its strong, and the length of its fibers. | 
                
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                  | 15. | Overspecialization  is a possible contributing factors when a species becomes  extinct. | 
                
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                  | 16. | A  galaxy is composed  from gas, dust, and billions of stars. | 
                
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                  | 17. | In 1915  Lillien Jane Martin became the first woman  to be appointed heading of a Stanford University department. | 
                
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                  | 18. | The  recession of the l970’s underscore some of the basic problems of contemporary American society. | 
                
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                  | 19. | In  1882 Schuyler Skaats Wheeler invented the fan electric, a propeller  driven by a motor. | 
                
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                  | 20. | Banking is ancient origin, though little  is known about its  history prior to the thirteenth century. | 
                
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                  | 21. | Allied  with the  British in the War of 1812, the Shawnee chief Tecumseh was regarded as having impression organizational capabilities. | 
                
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                  | 22. | Greatly  high production costs, together with serious health and safety concerns,  have reduced the number of nuclear power plants being built today. | 
                
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                  | 23. | The first  person believed to have used a series of photograph  to produce  an illusion of movement was Coleman Sellers. | 
                
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                  | 24. | Young  eagles develop adult makings after their third year, at which  time they leave parental supervise and seek their own mates and  territories. | 
                
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                  | 25. | From its beginning in 1639, Newport was a haven for colonial privateers as well a major port for trade. |