Clean Air, Dirty Air (Earthwatch S.)

by Lynne Patchett (Author)

• Used

  Hardcover
  1990

  $6.14

• Used

  Paperback
  1993

  $110.52

  Part of a series which explains how human activities affect the earth, starting with investigations and suggestions to help children explore their local environment and extending these to look at larger global questions. This book asks why we need clean air and how dirty air affects plants, animals, soil and buildings.