Match the following definitions to their correct terms. 1. any chemical compound that contains carbon
organic
2. a liquid that acts to dissolve or suspend substances
solute
3. a chemical compound that doesn't contain carbon
inorganic
4. a substance that is dissolved in a liquid
solvent

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Waste water from industries and domestic sources can be treated by chlorination or ultraviolet radiation. there are pros and cons to using either chlorine or uv radiation to kill harmful microorganisms. what is one reason chlorination would be preferred over ultraviolet radiation? a) chlorine only eliminates visible impurities and is ineffective against microorganisms. b) chlorine not only kills bacteria but provides a residual effect on returning microorganisms. c) uv radiation can be used only to treat drinking water and is ineffective in treating waste water. d) ultraviolet radiation is more effective

What type of measurement would you use to describe the density of species in each of these situations? explain your answer in each case. - sheep in a paddock - grass in a field - leaves on a plant