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The pollution of the seas can only be prevented provided that many countries follow the same policy. |
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By putting into practice a series of precautions it is generally believed' that the pollution of the seas will be prevented. |
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Owing to the pollution of the seas, many countries find it necessary to develop new strategies. |
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The seas will, it seems, continue to be polluted unless this agreement is accepted by a majority of the countries. |
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A lot of countries agree that it is essential to take strong action to put an end to the pollution of the seas. |