Gardening Q & A
At one time, weight net the oxygen atom was the basis of calculating relative molecular mass. It was discarded as it has three isotopes. After the discovery of isotopes for almost ...
http://wiki.answers.com/Q/Why_oxygen_is_not_used_a...
Basically, because "Why not?". Something needs to be the standard. Carbon-12 is fairly common, and it's not oxygen (which was the previous standard; unfortunately, some people took...
http://wiki.answers.com/Q/Why_carbon-12_is_used_as...
The PSI was replaced a while ago with something called the AQI (Air Quality Index). It normally measures ground-level ozone and particulates and can include sulfur dioxide, and nit...
http://answers.yahoo.com/question/index?qid=200705...
170 The 12 service categories defined in the plan are funding sources. Most have specific service standards that fit under these categories. Refer to the service standards for spec...
http://www.in.gov/dcs/2499.htm
Condition 1 (normal fungal ecology): an indoor environment that may have settled spores, fungal fragments or traces of actual growth whose identity, location and quantity are refle...
http://www.moldmen.net/faq.html