The African continent isn't suffering from the environmental challenge "reforestation", since most of the continent hasn't suffered deforestation.
Answer:
Alaska, Arkansas, California, Hawaii, Idaho, Illinois, Kentucky, Missouri, Montana, Nevada, Oregon, South Carolina, Tennessee, Utah, Washington and Wyoming.
The answer is the ocean-continental convergence. This is where the gold of the Inca civilization come from.
The Treaty of Waitangi was phrased slightly differently in English and in Maori, and in Maori it sounded like the British were not completely taking over the land, but only governing it and that the Maori would continue to have the ultimate authority over the land. Since the British understood the treaty as giving the Crown complete land to New Zealand, the Maori consider it unfair