The answer is B. to draw investment from Western oil companies
Answer:
On the basis of the temperature data he collected from different weather stations set up by the Tsar, Humboldt constructed the first world map of average temperature in which he used lines to connect points of equal temperature, called isotherms
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This just a little search on Wikipedia it might help you
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Pretty sure the answer is D if not its B
I believe that the answer is Urea.
Answer:
Singapore has very few natural resources. However, it takes full advantage of those few that they have. Deep water reserves of petroleum are mined and exported to other countries. Also, Singapore is important in electronics, as they are a key maker in computer products.
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