Land degradation and satellite images
eBooks for students and teachers, with Quizz.. inside the books (iBA format)
This book is available for iBooks on your Mac or iOS device.
PDF version of the ebook. The Quizz are below
The quiz included (Bookwidgets) in the ebooks are also used from a PC, tablet (iOS and Android) smartphone. Just click on the link (or the image) of the widget from your browser. Or copy the link in the browser (or in widget ipad application )