.................. rainfall in the desert is low, it is one of the most important climatic factors in the formation of desert erosion features.

A goose's neck is a little longer that than of a duck, and not so gracefully curved as a swan's.

Helicopters can rise or descend vertically, hover, and move forward, backward, ......................

Part of the Great Plains, Kansas is famous for ............. fields of wheat.

The sidereal day is the period .................... the Earth completes one rotation on its axis.

Throughout her length career, Grace Paley has been known for her ability to capture the distinct rhythms of New York speech in her short stories.

The Dallas Theater Center presents plays in two buildings ............ was designed by the internationally renowned architect, Frank Lloyd Wright.

............. stem from the everyday life of common people, the most popular themes are love, jealousy, revenge, disaster, and adventure. 

The introduction of new species of plants into the Hawaiian islands offers an opportunity to study the responsive of a natural system to stress.

A strong swimmer, .......................................