Son is working on his "Gardening" merit badge. He has an answer for the following question but I don't think it's going to be good enough. Can you help me find a site that will answer the following. Him, me and we haven't had any luck in finding what I think they're looking for.
2. Give the food value of the following.
a. Three root or tubar crops.
b. Three vegetables that bear above ground.
c. Three fruits.