$\begin{array}{1 1} \text{(a)The Haber process takes nitrogen gas from air and combines it with water molecule to form ammonia gas.} \\ \text{(b)The Haber process takes nitrogen gas from air and combines it with molecular Oxygen gas to form ammonia gas.} \\ \text{(c) The Haber process takes nitrogen dioxide gas from air and combines it with molecular hydrogen gas to form ammonia gas.} \\ \text{(d) The Haber process takes nitrogen gas from air and combines it with molecular hydrogen gas to form ammonia gas.}\end{array} $
