Which of the following terms describes the full available body of information on a particular crop, the property it is grown on, and the various factors known to be interacting with the crop and property? 1.photomapping 2.GPS mapping 3.background data 4. georeference

I think it's georeference

Explanation:

well when looking at this if you think about it   negativley and positivley   react with each other and when the first layer gets full they add layers it starts with 2 on the first layer and it constantly goes on until the official number is there