in the space provided, write one sentance that identifies why this circuit allows electrical charges to flow.

How manyatoms of mercury are in 1.4214e+1 ml sample

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?

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