Gross Jobs

ISBN-13: 9781604131314 / Angielski / Twarda / 2009 / 48 str.

Diane Lindsey Reeves;Joy Strickland

Opis

They clean up messes, take out the trash, and make sure water is safe to drink. They are the janitors, wastewater engineers, trash collectors, and other unsung heroes who do the dirty work that keeps the world clean and safe. This title explains what these people do and why in the world they do it.