Title: Why is the seawater so clean and blue in some countries? Author: Tan, Pey Lin Subject: Vision--Juvenile literature--Bibliography Water--Juvenile literature--Bibliography Library resources--Singapore Health and medicine>>Human anatomy and physiology>>Nervous system and sensory functions Language: English Publisher: National Library Board Singapore, 2008-01-05 File Details: application/pdf Abstract: This resource guide provides the answer to the question "Why is the seawater so clean and blue in some countries", with accompanying book and website recommendations relating to the topic. All Rights Reserved. National Library Board Singapore 2009.