Explain how drinking water is purified in moredeveloped countries. Explain how we can convert sewer water into drinking water. List three ways to provide safe drinking water in poor countries....

Explain how drinking water is purified in moredeveloped countries. Explain how we can convert sewer water into drinking water. List three ways to provide safe drinking water in poor countries. Describe the environmental problems caused by the widespread use of bottled water. Summarize the U.S. laws for protecting drinking water quality. List three ways to strengthen the U.S. Safe Drinking Water Act.