What are the advantages and disadvantages of the street vendors to the economy of rio?

Their placement because if they're in the less economically developed part then they would have a greater effect but if they're in the more economically developed part better shops are accessible.

Geothermic gradient is the rate of increasing temperature with respect to increasing the depth in the earths interior. away from tech tonic plates boundaries, it is about 25-40 c/km (72-87 degrees f/mi) of depth near the surface in most of the world.

Plz put the answer choices thx.