Answer:
Often developing countries have a comparative advantage in producing primary products. This is because many developing countries (e.g. in Africa are rich in resources, but poor in capital and education). Therefore, they can mine and export primary products to gain revenue.
Answer:
Rivers allow for trade from the sea to inland areas, which has economic benefits. Rivers also can be used by the military for transport during battle or for supplying armies
Explanation:
The theory was challenged in the 1920s by psychologists such as Walter Cannon and Philip Bard, who developed an alternative theory of emotion known as Cannon–Bard theory, in which physiological changes follow emotions. A third theory of emotion is Schachter and Singer's two factor theory of emotion.
That's a really nice quote. My personal favorite is "Life is like riding a bicycle. To keep your balance, you must keep moving" -Albert Einstein
