Cual es el primer material amorfos que se utilizó?

What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots

In a copper wire, a temperature increase is the result of which of the following

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?