Questions 10-12

                    The Mississippi River and its tributaries from the world´s fourth-longest rivers system.  Two Canadian

Provinces and all or parts of 31 states in the United States have rivers that drain into the Mississippi.  As the

Mississippi River flows down to join the sea, it deposits sand, silt, and clay, building the delta seaward across

Louisiana´s shallow continental shelf.  The delta marsh and its bays, lakes, and sound provide shelter and

nutrients for North America´s most fertile marine nursery

                10.It can be inferred from the passage that

5. It can be inferred from the passage that

Questions 4-6

                Erosion of America´s farmland by wind and water has been a problem since settlers first put the prairies and grasslands under the plow in the nineteenth century.  By the 1930s, more than 282 million acres of farmland were damaged by erosion.  After 40 years of conservation efforts, soil erosion has accelerated due to new demands placed on the land by heavy crop production.  In the years ahead, soil erosion and the pollution problems it causes are likely to replace petroleum scarcity as the nation´s most critical natural resource problem.

                4. Land erosion is probably worse in which of the following areas?

2. It can be inferred from the passage that

3. It can be inferred from the passage that

Questions 1-3

                Time can be regarded as neither a biological nor a physical absolute but a cultural invention.  Different

cultures have differing perceptions about the passage of time.  At the opposing ends of the spectrum are the

“monochronic,” or linear, cultures and the “polychromic,” or simultaneous, cultures. In monochronic societies,

schedules and routines are primary.  Monochronic societies tend to be more efficient and impartial.  However,

they are blind to the humanity of their members.  In polychromic societies, people take precedence over

schedules.  People are rarely alone, not even at home, and are usually dealing with several people at once. 

Time and schedules are not priorities.

                1. It can be inferred from the passage that

Schools based upon the philosophy of Rudolph Steiner are all coeducational, practice mixed-ability teaching, and discourage competition among children.

Which of the following activities would probably NOT be seen in a Steiner school?

The microbiologist exposed bacteria to increasingly higher levels of cyanide until he had a type of bacteria that could destroy the cyanide that had been dumped into rivers by chemical plants.

In what way could this bacteria be useful?

The Academy of Dog Training supplies law enforcement agencies with German shepherds which are trained to recognize the smell of marijuana and other drugs.

In which of the following places would these German shepherds most likely be used?

Studies show that bike races in Mexico City, where air is 20 percent less dense than at sea level, tend to be 3 to 5 percent faster than at lower altitudes.

In which area would a bike race probably be the slowest?