Some insects bear a remarkable resemblance to dead twigs, being long, slenderness, wingless, and brownish in color.

A food additive is any chemical that food manufacturers intentional add to their products.

George Gerschwin was an American composer whose concert works joined the sounds of jazz with them of traditional orchestration.

A number of the American Indian languages spoken at the time of the European arrival in the New World in the late fifteen century have become extinct.

Early European settlers in North America used medicines they made from plants native to treat colds, pneumonia, and ague, an illness similar to malaria.

Volcanism occurs on Earth in several geological setting, most of which are associated with the boundaries of the enormous grid, rigid plates that make up the lithosphere.

As secretary of transportation from 1975 to 1977, William Coleman worked to help the bankrupt railroads in the northeastern United States solved their financial problems.

Faults in the Earth's crust are most evidently in sedimentary formations, where they interrupt previously continuous layers.

Many flowering plants benefit of pollination by adult butterflies and moths.

One of the problems of United States agriculture that has persisted during the 1920s until the present day is the tendency of farm income to lag behind the costs of production.