This is not the first time deep sea trenches have surprised scientists.Recent studies by University of Aberdeen’s Oceanlab team have revealed that marine life is much more abundant in this difficult habitat than was previously thought.In 2008,they filmed the deepest living fish ever to be caught on camera—a 17strong shoal(鱼群)found at depths of 7.7km in the Japan Trench,and they discovered that other animals such as amphipods were present in large numbers even deeper.Dr Alan Jamieson,from Oceanlab,said the new study was helping researchers to build up a better idea of what happens in the deepest of the deep.
1.From the description of carbon sinks we learn that ______.
A.they have been on the ocean floor for thousands of years
B.the trenches can be used to control climate
C.there are many chemistry resources on the ocean floor
D.the carbon sinks contribute to changes in the climate
2.What can be inferred from the passage?
A.Many scientists have died in the Marianas Trench during explorations.
B.Jacques Piccard and Don Walsh came back successfully from the Marianas Trench.
C.Unmanned underwater vehicles have replaced humans in exploring the floor since 1960.
D.The explorations of the trench have not been launched until 1960.
3.What do we know from Ronnie Glud’s words?
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