Answer:
The type of weathering that occurs is abrasion.
Explanation:
Iguazu Falls are one of the highest waterfalls in the world and the biggest waterfall system in the world. The amount of water that falls down these waterfalls is enormous, and that combined with the height gives the water a lot of power. The water is carrying huge amounts of pebbles, rocks, the debris of all sorts and sizes, and they combined with the water manage to erode the bedrock.
As the water carries all of the material with it, it scratches the surface of the bedrock, and as it does it gradually makes the surface of the bedrock smooth. At the waterfalls themselves, the power with which the water and the material it carries are much bigger so they manage to create a very deep caldron-like hole in the bedrock below the waterfall, and plus smoothens its surface.
Answer:
Overexploitation of resources.
Explanation:
In this case it's overexploitation of natural resources, wich is a big problem nowadays. Using resources excessively results in damaged resources, that's called overexploitation.
The second assumption is that there is something exceptional about Africa, that while other continents and peoples have got or are getting richer, Africans, for reasons we can think but no longer speak in polite company, choose to remain in poverty. Our capacity to see Africa as divergent lets us off the hook so we don’t have to understand our own complicity in the challenges various African countries face today. It also means we rarely rage as we should against the actions of the corporations and governments that profit from instability, corruption or even inexperience (African negotiators at the climate talks have historically been disadvantaged by their lack of experience and the expectation among western negotiators that they should be grateful with whatever they get).
If there is, then, no innate propensity for corruption, violence or poverty in Africa, then the narratives that fuel the stereotypes need questioning. One possible explanation comes from the Nigerian author Chinua Achebe, who said: “The west seems to suffer deep anxieties about the precariousness of its civilisation and to have a need for constant reassurance by comparison with Africa.” Perhaps it’s not Africa that needs saving, but us.
Answer:
False
Explanation:
compressive stress produces reverse faults.
