CK-12 Foundation
Ck 12: Earth Science: Safety of Water
[Free Registration/Login may be required to access all resource tools.] How some people do not have access to safe water for drinking and bathing.
CK-12 Foundation
Ck 12: Earth Science: Safety of Water
[Free Registration/Login may be required to access all resource tools.] How some people do not have access to safe water for drinking and bathing.
CK-12 Foundation
Ck 12: Earth Science: Safety of Water Study Guide
[Free Registration/Login may be required to access all resource tools.] This study guide summarizes key points about water quality. Includes a few questions to check for understanding.