<span>So far, astronomers have found more than 500 solar systemsand are discovering new ones every year. Given how many they have found in our own neighborhood of the Milky Way galaxy, scientists estimate that there may be tens of billions of solar systems in our galaxy, perhaps even as many as 100 billion.</span>
Answer:
The answer is C. An international lawsuit brought to GATT by Central and South American countries against the US for imposing unfair standards for the harvesting of tuna.
Explanation:
The Tuna Dolphin Case was a case that Central and South American tuna exporters lodged against the United States; the case, in which complaints were made against United States embargoes on tuna products from Central and South American countries that didn't protect dolphins while they harvested tuna, was lodged at General Agreement on Tariffs and Trade (GATT) committee, and later at the World Trade Organization (WTO).
A theory proposed by Harold Hotelling states that owners of nonrenewable resources will only produce that resource if it wills the yield will have more value than other financial instruments available in the market, such as interest bearing securities and bonds. This assumes such owners are only motivated by profit and that markets are efficient. The theory is used by economists to predict the price of nonrenewable resources like oil, based on prevailing interest rates.
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