O'Mara, Anna

Provides basic scientific information about mountains including their height as well as the difference beween being folded, faulted, volcanic, and dome.

Presents an overview of tropical rain forests and the variety of life--plant, animal, and human--found in them.

Probides basic scientific insormation about mountains including their height as well as the difference between being folded, faulted, volcanic and dome.

Provides basic scientific information about oceans including their size, floors, mountains and mid-ocean ridges,trenches, volcanoes,currents, tides and waves.

Provides basic information about the conditions, terrain, plants, and animals found in the mahor deserts of the world.