Some Researchers Have Begun Attempting to Clean Up Oil Spills

question 10

Multiple Choice

Some researchers have begun attempting to clean up oil spills by adding nonindigenous microbial hydrocarbon degraders to the spill,in the hopes that these bacteria will neutralize the dangerous chemicals in the spill.This is an example of _____.

• A)bioremediation via fertilization
• B)seeding
• C)production of a new antibiotic
• D)use of extremophiles for cleanup of organic solvents

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Definitions:

Present Value of Annuity

The current worth of a series of future cash flows, adjusted for interest, often used in calculating loans and investments.

Rate of Return on Investment

A measure of the profitability of an investment, calculated as a percentage of the original investment.

Net Present Value

A financial metric used to evaluate the profitability of an investment by calculating the difference between the present value of cash inflows and outflows over a period of time.

Compound Interest

Interest earnings calculated on the base principal along with any interest that has previously accumulated from past periods on that principal.