Question 17 (1 point) the natural world offers may benefits to urban communities. which of the following would not be considered a benefit of nature to a community? o production of insect communities o absorption of carbon dioxide control of vermin o removal of air borne contaminants

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: