How does the United States meet its scarcity of refined petroleum products? What other approaches could it use?

How does the United States meet its scarcity of refined petroleum products?

Import from other countries.

What other approaches could it use?

Numerous statistics indicate positive trends in the midstream and downstream oil markets, led by the domestic petroleum refining industry. Domestic capacity has expanded, and there is a robust product-import market. Increased refining efficiencies have moderated crude-oil price rises since the 1970s. Products have been reformulated to improve environmental performance.

Higher refining margins in recent years have led to planned capacity additions, domestically and internationally. Few if any new refineries are likely to be built in the United States, however. This is because (among other factors) the financial disadvantage of building from scratch versus incrementally expanding existing capacity, the issue of permits aside. In all, the price- and profit-driven market process is ably at work, promising to bring the issue of pricing petroleum products back again to the issue of the globally-set price of crude oil.

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.

answer; presidential election years;