Salt levels and different wild life that lives in them can make seas different from each other.
Hope this helps
<span />The main difference lies in the focus of the models. The stages of economic growth focuses on the development of one
country, while the core-periphery model focuses on many countries all
across the globe. Other difference is that Rostow is capitalist according who a country can finance their own development, while Wallerstein is Marxist<span><span>. According Wallerstein peripheral
countries will always be dependent on the core countries.</span>countries.</span><span>Another difference is that Rostow's model has five stages, while Wallerstein's has three tiers.</span>
True. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
