Which of the following can be said about the indoor pollutant styrene?
a. It is found in carpets.
b. It is found in plastic products.
c. It causes kidney damage.
d. It causes liver damage.
e. All of these answers
E
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The economic activities not a part of the official record and that take place outside official systems of regulation or remuneration make up the ________ sector of the economy and tend to be an important part of urban economic life around the world
A) informal B) underground C) black market D) market
Examples of point sources of water pollution include
A. a sewage outfall from a city sewer plant. B. runoff from parking lots. C. runoff from farm fields.
Developing countries are experiencing rapid urbanization. What are the pull and push factors that are driving this movement? What are the challenges of the receiving cities?
What will be an ideal response?
In deserts of southwestern North America developers often build houses in dry stream beds and build only minimal subsurface drainage systems to handle a flow of water comparable to the size of the dry stream channel
Is this a reasonable development model in the interest of public safety? A) Yes, any potential flooding catastrophe would be a 100 year flood event and would have adequate warning to evacuate people for safety, so the drainage system is adequate. B) No, giant rock avalanches could come down the valley covering houses. C) No, flash floods can produce high viscosity mudflows that would not be captured by the drainage system and could flow out over the valley, destroying everything in its path. D) Yes, although flash floods can occur, using the channel size is a reasonable estimate of the maximum flood size.