num_pages: 24
description: This full-color series presents nonfiction topics about interesting places and subjects. Each title features color photographs and a glossary to help with vocabulary comprehension. Exercises and suggestions for project work are also included. The books are graded at 400-to 1,400-word vocabulary levels. Audio "CDs or "Cassettes are available for select titles.
language: English
title: Pollution
titlecomplete: Pollution (Oxford Bookworms Factfiles: Stage 2: 700 Headwords)
ratings_count: 8
series: Oxford Bookworms Factfiles: Stage 2
publisher: Oxford University Press