The correct answer is C) comprise several edge cities with independent business cores.
The modern urban areas have central city and multiple other edge cities around it, even though the central city is the biggest and most influential, all of the edge cities have separate business cores and all institutions needed for an urban area. They are in very close proximity to the central city and are well connected in every department.
One of the most common forms of weathering in areas that have frequent freeze/thaw cycles is ice wedging.
An extrusive igneous rock is created when lava hardens.
Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later used to fuel cellular activities. The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide.
B is the answer.
A doesn’t make sense, animals don’t really help hunters.
D doesn’t make sense either, transportation was good but herds of animals usually weren’t only used for that.
E could make sense but usually they already had an abundance of fur and skins from animals they had killed in the past.
F animals rarely help when preparing land for planting and I doubt they knew how to use them for such things, though it’s possible, it’s very unlikely, especially since they just got them.