1. Water quality is determined by many factors.
a. Many factors determine water quality.
2. Suspended and dissolved substances are contained in all natural waters.
a. All natural waters contain suspended and dissolved substances.
3. The amounts of those substances are controlled by the environment.
a. The environment controls the amount of those substances.
4. But some dissolved substances are produced by pesticides.
a. Pesticides produce some dissolved substances.
5. Another element of quality is sediment that is deposited in water from fields, livestock feedlots, and other sources.
a. Sediments deposited from fields, livestock feedlots, and other sources also affect water quality.
6. The bottom life of streams and lakes is affected by suspended sediment.
a. Suspended sediment affects the bottom life of streams and lakes.
7. Light penetration is reduced by sediment, and bottom-dwelling organisms may be smothered by layers of sediment.
a. Sediments reduce light penetration and, when present in many layers, smother bottom-dwelling organisms
8. The quality of water in city systems is measured frequently at laboratories.
a. Laboratories frequently measure the water quality in city systems.
9. If legal levels are exceeded by pollutants, the citizens must be notified by city officials.
a. City officials must notify the citizens if pollutants exceed legal levels.
Bottled water is purchased by many people.
a. Many people purchase bottled water.
Bottled water is thought to be safer, but in truth a different taste is all that is purchased.
a. People purchase bottled water for a different taste, thinking it is safer.
Definition of passive voice:
The website about passive voice starts not with the definition of passive voice but instead with some myths about passive voice. The first myth is that using passive voice constitutes a grammatical error. The article states that passive voice is a style issue that pertains to clarity rather than a grammatical error. The next myth states that ANY time the phrase “to be” is used this constitutes a grammatical error. This is not always true. Summed up, the 3 myths go over how first person can still be in the form of passive voice, why it is sometimes ok to use passive voice, and explains why you should not always rely on the grammar checker to catch the passive voice in writing.
After clearing up some of these myths, the article defines passive voice in an easy to understand manner. It defines passive voice as a passive construction that occurs when you make the object of an action into the subject of a sentence. That is, whoever or whatever is performing the action is not built as the grammatical subject of the sentence. The article uses a great example of passive voice.
Why was the road crossed by the chicken?
Or in active voice…
Why did the chicken cross the road?
http://www.unc.edu/depts/wcweb/handouts/passivevoice.html
Exercises:
This website contains links to a bunch of documents that illustrate passive voice in a variety of situations.
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