According to Wallersteins world systems theory, which countries have the highest levels of economic development

The middle east links which two continents? ●asia and europe●europ and africa●africa and asia●africa and australia

Recrystallization definition earth science

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: