what type of gas do plants need to make food?
<answer> Plants do not make food out of any gas. <context> Carbon Dioxide that is what they inhale not eat, plants eat nutrients in the form of phosphorus, nitrogen, and I think potassium mainly. they exhale oqygen. they use pho … tosynthesis, by using sunlight (hence the prefix photo) to make chlorophyll, etc etc etc. plants do not make food out of any gas. jh