Carnegie Hall was the first building in New York designed special for orchestral music.

The Texas Pandhlandle region, in the northwestern part of the state, produces more wheat, cotton, and grain sorghum than any of other area of Texas.

The orangutan's hands and feet are designed for holding and grasping branches, and its powerful immensely arms enable it to clim and swing in trees without difficulty

Narcissus bulbs ....................at least three inches apart and covered with about four inches of well-drained soil.

Industrialisation has been responsible for .................... most radical of the environmental changes caused by humans.

Color and light, taken together, ........ the aesthetic impact of the interior of a building.

............ that Rachel Carson's 1962 book Silent Spring was one of the chief sources of inspiration for the development of nontoxic pesticides.

In many areas the slope and topography of the land ............... excess rainfall to run off into a natural outlet.

Total color blindness, ....................., is the result of a defect in the retina.

A microscope can reveal vastly ..............detail than is visible to the naked eye.