Keeping water clean

Every day 25,000 people die from using unclean water. This book, which explains how environments are affected by human interference, examines the issues and suggests some answers. It provides a worldwide survey of key environment themes, reflecting today's concerns and describes how companies and individuals are taking action to improve the situation, as well as explaining what still needs to be done.

שנה

1998

שפה

English

סדרה

Protecting our planet

הוצאה

Raintree Steck-Vaughn

מהדורות

1

עמודים

48

ISBN

9780817249359

מקור הנתונים: Wikidata