This poetical study of water ranges from classical myth and literature to modern physics and microbiology. Because water exists in three forms or phases—liqui

Freshwater is our planet's most precious resource — essential for life itself. Despite this fact, many people across our planet face difficulties finding safe

Concepts of Biology is designed for the single-semester introduction to biology course for non-science majors, which for many students is their only college-lev

Freshwater is our planet's most precious resource -- essential for life itself. Despite this fact, many people across our planet face difficulties finding safe,

When the Sudanese civil war reaches his village in 1985, 11-year-old Salva becomes separated from his family and must walk with other Dinka tribe members throug