Search results
Results From The WOW.Com Content Network
A network of interactions entails that ecological units are defined by the relationships and dynamics between the organisms and environment. [1] Whether boundaries are drawn by topographical or process-related criteria: Topographical criteria means that the ecological boundaries are based on the physical and geographical features in the ...
Since the start of science-based environmental monitoring, a number of quality indices have been devised to help classify and clarify the meaning of the considerable volumes of data involved. Stating that a river stretch is in "Class B" is likely to be much more informative than stating that this river stretch has a mean BOD of 4.2, a mean ...
The biotic environment includes genes, cells, organisms, members of the same species (conspecifics) and other species that share a habitat. [172] The distinction between external and internal environments, however, is an abstraction parsing life and environment into units or facts that are inseparable in reality.
1-in-100 flood – a flood with 1 in 100 chance of occurring in any given year (used as a safety requirement for the construction industry.); 20/30/10 standard - 20 mg/L Biochemical Oxygen Demand (BOD), 30 mg/L Suspended Solids (SS), 10 units of E. coli: the water quality standard for greywater use in toilets, laundry and surface irrigation.
There are 7 base units and 22 derived units [1] (excluding compound units). These units are used both in science and in commerce. Two of the base SI units and 17 of the derived units are named after scientists. [2] 28 non-SI units are named after scientists. By this convention, their names are immortalised.
The carat is a unit for measuring gemstones that had its origin in the carob seed, which later was standardized at 1/144 ounce and then 0.2 gram. Goods of commerce were originally traded by number or volume. When weighing of goods began, units of mass based on a volume of grain or water were developed.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
This is a list of scientific units named after people. For other lists of eponyms (names derived from people) see eponym . By convention , the name of the unit is properly written starting with a lowercase letter (except where any word would be capitalized), but the first letter of its symbol is a capital letter if it is derived from a proper name.