Why is it useful to create neptunium by bombarding uranium with protons, even though neptunium disintegrates in about two days?

The reaction q+r2=r2q is found to be first order in r2 and

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f

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