What is the nitrogen cycle? Responses the process of chemically producing nitrogen to be used by plants and animals the process of chemically producing nitrogen to be used by plants and animals the process of continually recycling nitrogen from living things to non-living things between Earth and its atmosphere the process of continually recycling nitrogen from living things to non-living things between Earth and its atmosphere the process green plants use to make food the process green plants use to make food the process of recycling carbon from living things to non-living things between Earth and its atmospher