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True or false. The presence of bacteria always mean that the water is unsafe to drink. True O False True or false. A positive total coliform bacteria result means the water is safe for human consumption. True O False Which of the following are major contributors to water hardness? Choose two. Carbon (C) Calcium (Ca) Manganese (Mn) Magnesium (Mg)

True or false. The presence of bacteria always mean that the water is unsafe to drink. True O False True or false. A positive total coliform bacteria result means the water is safe for human consumption. True O False Which of the following are major contributors to water hardness? Choose two. Carbon (C) Calcium (Ca) Manganese (Mn) Magnesium (Mg)

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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SUBJECT : EARTH SCIENCE

TOPIC : WATER QUALITY

True or false. The presence of bacteria always mean that the water is unsafe to drink. True False True or false. A positive total coliform bacteria result means the water is safe for human consumption. True False Which of the following are major contributors to water hardness? Choose two. Carbon (C) Calcium (Ca) Manganese (Mn) Magnesium (Mg)
Transcribed Image Text:True or false. The presence of bacteria always mean that the water is unsafe to drink. True False True or false. A positive total coliform bacteria result means the water is safe for human consumption. True False Which of the following are major contributors to water hardness? Choose two. Carbon (C) Calcium (Ca) Manganese (Mn) Magnesium (Mg)
True or false. An increase in the regular chloride content of water may indicate possible pollution from sources such as human sewage, animal manure or industrial wastes. True False True or False. Reverse osmosis increases electrical conductivity of water. True O False
Transcribed Image Text:True or false. An increase in the regular chloride content of water may indicate possible pollution from sources such as human sewage, animal manure or industrial wastes. True False True or False. Reverse osmosis increases electrical conductivity of water. True O False
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