Describe how increased knowledge about factors that affect toxicity, such as water hardness and complexing of metals with dissolved organic carbon (DOC), has influenced the way that the regulatory community views toxicity of metals in aquatic ecosystems.

*tilts head* sounds more like a statement

i believe it is a.) released into

explanation:

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying