Water Treatment Exam 1 With 100% Correct Question And Answer

Pros Vs. Cons for Channelization & surface water pumping {Ans: Channelization is "good" / benefits -Flood control -Water transport -Small hydro power generation -Transportation -Irrigation -Industry Channelization is "bad" / impacts -Altered habitat -Altered flows -Dewatered systems -Altered thermal regimes -Altered estuaries}Define Water Hardness {Ans: The ability of water to cause soap scum -increases the amount of soap needed -Causes scaling on pipes & plumbing fixtures}Condensation {Ans: Defined as: Conversion of water vapor to liquid -excess water vapor condenses to form cloud droplets}Excess water usage & development around water resources result in? {Ans: 1. Decline in water quantity 2. Decline in water quality}Three types of wells. Explain each in a little more detail. {Ans: 1. Dug- if the ground is soft and watertable is shallow 2. Driven- They are built by driving a small-diameter pipe into soft earth, such as sand or gravel. A screen is usually attached to the bottom of the pipe to filter out sand and other particles. Problems? They can only tap shallow water, and because the source of the water is so close to the surface, contamination from surface pollutants can occur. 3. Drilled-Most modern wells are drilled, which requires