Título:
 Carbon-oxygen and nitrogen cycles
PERSONAL_AUTHOR_EPSB:
 
Fecha de publicación como intervalo:
 2005
SERIES_EPSB:
 
Descripción física:
 32 p. : col. ill. ; 25 cm.
Contenido:
 What are carbon, oxygen, and nitrogen? -- What is the carbon-oxygen cycle? -- What is the nitrogen cycle? -- How does energy flow between living things? -- What is photosynthesis? -- What is respiration? -- How do humans affect the carbon-oxygen cycle? -- How do humans affect the nitrogen cycle?
ISBN:
 9781403470676
9781403470607
Información de publicación:
 Chicago : Heinemann Library, c2005.
