Approximately how many elected officials are there in the united states? a. 2,500 c. 250,000 b. 25,000 d. 500,000

I am pretty sure it is D

The following five challenges to the future of agriculture and food security exist on almost every continent in one form or another: constraints on resources from fossil fuel to water to phosphorus; land management problems resulting from tillage to monoculture to improper grazing practices; food waste from spoilage to