1.A good exercise program helps teach people to avoid the habits that might shorten the lives





2.Classicism as a doctrine seeks what is universally truth and good.





3.Researchers at the University of Colorado are investigating a series of indicators that A B could help themselves to predict earthquakes..





4.Fungi are important in the process of decay, which returns ingredients to the soil, enhances soil fertility, and decompose animal debris





5.A common use with gold in the nineteenth century was as a standard for the value of money





6.Sea turtles date back 100 million year and are the only ancient sea reptiles to survive the present Day.





7.At a first , the scientific method may appear to be a narrow and restrictive way of gaining understanding.





8.Since prehistoric times, artists have portrayed subjects that representative their culture.





9.How Native Americans developed corn is a puzzling , for no wild corn has ever been discovered, and it grows only where people plant and tend it.





10.Mammals lose body heat to them environment in cold weather more quickly than in hot weather.