4 CFESA Steam Chapter 4 - Water Quality Questions With Correct Solutions, Already Passed!!
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4 CFESA Steam Chapter 4 - Water Quality
Institution
4 CFESA Steam Chapter 4 - Water Quality
1.) Describe the water hydrological cycle. - Water evaporates from lakes, rivers, oceans, ground,
etc. The water vapor enters the air and rises eventually forming clouds. When the clouds become
saturated, it begins to rain returning the water to the earth.
2.) How does the pollution from automob...
4 CFESA Steam Chapter 4 - Water
Quality
1.) Describe the water hydrological cycle. - Water evaporates from lakes, rivers, oceans, ground,
etc. The water vapor enters the air and rises eventually forming clouds. When the clouds become
saturated, it begins to rain returning the water to the earth.
2.) How does the pollution from automobiles, plant life, and combustion affect our water supply? -
The exhaust vapors in the atmosphere combine with the rain forming more dangerous pollution
chemicals in liquid form that fall back to the ground, rivers, ect.
3.) Why does the carbon dioxide gas in the air create such a water problem? - Mixes with rain and
forms carbonic acid.
4.) How does our water system become hard water if rain water is so pure when it leaves the clouds? -
The rain mixed with the pollutants create acids that dissolve the limestone and other hard
minerals washing them down into our water tables, lakes ect.
5.) What is the PH index and why is it important? - A scale used to measure acidity and alkalinity.
6.) What PH is a neutral solution? - 7
7.) A PH of 2 is how much more acidic than a PH of 3? - 10 times
8.) Give a couple of examples of common materials with acidic PH factors. - Vinegars, lemon juice,
battery acid
9.) What material has a neutral PH of 7? - Water
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