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WASHINGTON, Oct. 8. -- That musty corn is not the only or perhaps the chief cause of pellagra, but that many cases can be traced to impure water, is the report of army surgeons who have been ...

Key fact An impure substance is a type of mixture, so melting points can be used to find out if a substance is pure or impure. Impure substances tend to have a slightly lower melting point than ...

VOICEOVER: Pure and impure substances. The word pure in everyday life doesn't have the same meaning in science. For example, pure orange juice is a mixture of compounds and bottled water still has ...

As early as 1500 BCE, ancient Egyptians added a binding agent to their water to clump contaminants together for easy removal. Two major developments in the mid-1800s showed why impure water is ...

3. Risk of corrosion: Using impure water (not distilled) or incorrect water-methanol ratios could lead to corrosion in the intake system, as well as potential detonation issues. Currently ...

Haryana Irrigation and Water Resources Minister Shruti Choudhry on Wednesday said that the government has done a lot of work regarding improving the quality and quantity of groundwater. The minister ...

Special to THE NEW YORK TIMES. TimesMachine is an exclusive benefit for home delivery and digital subscribers. Full text is unavailable for this digitized archive article. Subscribers may view the ...

According to the officials of the KUIDFC, when the water was tested every three months, it was found to be impure several times. Out of 840 borewells within the jurisdiction of BCC, 786 borewells ...