The theory is that because the oceanic plate is denser than the hotter mantle beneath it, this contrast in density causes the plate to sink into the mantle. The process of a tectonic plate descending into the mantle is termed subduction. Slab pull occurs when an oceanic plate subducts into the underlying mantle.
Ok I don't know what chart it is (that would really help) but the global population is around 7 billion not 80 million so unless the chart is from a long time ago (when the population was smaller) I'd go with B. The global population is about 80,000,000
54 I believe........................
The indigenous people of Northern Mexico met their need for food because of all the wild animals there. They also planted and harvested their own food, and this was their food supply.
Hope this helps!