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WorksheetsWater Quality & System
Total questions: 10
Worksheet time: 8mins
Precipitation or snow melt that runs off of roofs, roads, and sidewalks/paths, is considered:
A. Storm water runoff
B. Waste water
C. Grey water
Many aquifers around the world are being drained faster than they are filling up.
True
False
A form of pollution that gets into the water supply is called a (a) .
Hint: starts with a letter c.
Cholera is a bacterial disease that is spread throughout a community by contaminated water. How can the spread of cholera (bacteria) be prevented?
A. by giving healthy people antibiotics before they get sick
B. by using Chlorine to treat water before it enters the water supply
C. by using waste to fertilize fields instead of releasing it into the water supply
The removal of salt from brackish or ocean water is known as:
A. denitrification
B. desalination
C. re-salination
Which photo shows eutrophication on a water body (lake) as a result of human activities that continue to overload water systems with excess nutrients?
Waste water is best described as:
A. Water that you can cook with.
B. Water that goes down your drain or toilet.
C. Water in a local pond.
D. River water.
After wastewater undergo treatment, the by-products comprise of 2 constituents i.e. sludge disposal (solid waste) & effluent (liquid waste). With proper advance treatment, the solid constituent can be used for fertilizer as an income revenue.
True
False
Which process would most likely increase the dissolved oxygen level in a freshwater lake?
A. algae bloom
B. lake turnover
C. photosynthesis
D. respiration
Sketch the conventional raw water treatment plant layout to produce potable water by stating and labelling the 4 main processes.
Note: Ensure the arrows show the correct sequence of treatment processes.
