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Nash, Neyomi
ld Geography 2021 Semester 2 Final Exam / 15 of 30
Il Paus
Chile is a unique country in its size and shape. Which physical feature act as a barrier for the country to trade on land easily with its South American neighbors.
O A The Andes Mountains
O B. Large rivers
OC Tropical rain forests
OD. The Atacama Desert

The oldest rocks in the south atlantic ocean, immediately adjacent to the african and south american continental shelves, are 120,000,000 years old (time). calculate the average rate of seafloorspreading for the south atlantic ocean over its entire existence (hint: use formula: velocity = distance/time): /yr (velocity). now convert that to: cm/yr: