What have the scientists discovered about the amphipods?
A. They are trapped in the trench.
B. They live on organic pollutants.
C. They have been highly polluted.
D. They are identified as a new species.
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What did Alan Jamiecson's team use the"lander"for?
A. Deep sea fishery and adventure.
B. Getting samples from the deep sea.
C. Testing water pressure in the trench.
D. Clearingaway the industrial pollutants.
What do we learn about the Mariana Trench?
A. It is the center of the world's ocean.
B. It has been affected by contamination.
C. It remains untouched by human activity.
D. It has been profoundly explored by scientists.
What is the author's atitude toward deep sea mining?
A. Objective.
B. Pessimistic.
C. Suspicious.
D. Indifferent.
What does the author mean by saying "blunt the sharp edge of enthusiasm” (Para. 4) ?
A. Put a stop to the deep sea mining projects.
B. Solve the conflicts among deep sea miners.
Cool down the craze of deep sea exploitation.
D. Recognize the enthusiasm towards the ocean.
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