Marks 4-10 are RMA <.<
4 Deciduous Forest: acorn Recipe 3, cave building item recipe
4 Grasslands: acorn Recipe 3, cave building item recipe
4 Mountains: acorn Recipe 2, cave building item recipe, a Recipe???
3 Coniferous Forest: acorn Recipe 2, cave building item recipe
4 Prairie: acorn Recipe 2, cave building item recipe 2
4 Riparian Woodland: acorn Recipe 3, cave building item recipe
3 Taiga: acorn Recipe, cave building item recipe 2
3 Swamp: cave building item recipe, acorn Recipe 2
3 Desert: cave building item recipe 2, Bone Recipe
2 Rainforest: cave building item recipe 2