Directions: Complete the passage with the appropriate words or expressions in the box. Write your answer s with the corresponding letter in the blanks . A. beneath the surface of B. vital C. exploring D. species E. funding F. overlook G. a drop in the bucket H. planet I. learn about J. surviva l We have spent a great deal of time and money __1__ space, but remain ignorant about vast areas of our own __2__ . For we still know little of the world __3__ the seas. With so much to __4__ life in the depths of the ocean it is surprising there is so little __5__ for deep sea exploration. It amounts to little more than __6__ of what is needed if we are to make full use of this __7__ resource. Given our growing population the oceans may even hold the key to the __8__ of our __9__ . It would be foolish to continue to __10__ their importance.