Each Summer, a Large "Dead Zone" Devoid of Fish and Other

question 32

Multiple Choice

Each summer, a large "dead zone" devoid of fish and other animals develops where the Mississippi River flows into the Gulf of Mexico. What causes this?

• A) There are high levels of mercury in the river water.
• B) Global warming is making the river water too hot for the fish to tolerate.
• C) Acid rain makes the gulf's water too acidic to support fish.
• D) High levels of pesticides are used in the Mississippi River basin.
• E) Large quantities of fertilizer run off from Midwestern farm fields into the Mississippi River.

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Definitions:

T-Bill

Treasury Bill, a short-term government security issued at a discount from the face value and pays no interest before it matures.

Yields

The income return on an investment, such as the interest or dividends received, usually expressed as an annual percentage.

T-Bill

Short for Treasury Bill, a short-term government securities issued with a maturity of less than one year, considered a safe investment.

Interest Rates

They are the charges lenders impose on borrowers for the use of financial assets, restated here to highlight their critical role in finance and borrowing.