Why is it important to include a control group whenever possible in an experiment?

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

If you burn 46.6 g of hydrogen and produce 416 g of water, how much oxygen reacted

Maya wrote if you step to describe how carbon circulates between the atmosphere and living organisms