Treatment of furfural with potassium dichromate and sulphuric acid produces

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

Which item is most likely part of the safety contract

In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above