Help me In the past 50 years the number of dolphins in the Black Sea has declined from an estimated million to about 200,000. We must improve the water quality, but how will it be possible financially and administratively when the Danube flows through eight countries, and 70 million people live within its drainage areas? ––Jon Thompson, "East Europe's Dark Dawn," National Geographic, June 1991

According to the author, cleaning up the Black Sea will be difficult because it will be expensive and because eight governments will have to agree on steps to take to solve the problem.

Please select the best answer from the choices provided

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no links i will report you!