When the price of oil drops this usually means that OPEC or a major state within OPEC like Saudi Arabia, or Venezuela has increased the supply of oil leading to a drop in price. This is the current policy of the Saudi Government which has led to a drastic decline in oil prices over the last 3 to 4 months.
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Short term- mainly involve search and rescue and helping the injured
Long term- go on for months and years after a disaster. It involves rebuilding destroyed houses, schools, hospitals, etc. It also involves kick-starting the local economy.
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1
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The rest are wrong b/c it helped <em>expand</em> China rather than isolate it, they didn't use ships on the Silk Road, and it brought better communications, etc. between countries.
I believe the final answer is correct. Water is a desert's scarcest recourse. <span />
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they probably would have been in property because most US citizens at the time made money by selling slaves or making their slaves dance and tell Fortunes in order to make money