(1) The repair of the US-China undersea fibre optic cable, damaged Friday night for the second time in a month, was initiated Monday.

(2) The ancient sponges provided much of the backbone of the undersea reef structures.

(3) Some of the salt in the oceans comes from undersea volcanoes and hydrothermal vents.

(4) Apparently an undersea cable connecting Shanghai to the US was severed.

(5) Whatever the exact explanation, it is well known that not every undersea earthquake produces a tsunami.

(6) He is talking about people laying undersea fibre optic cable, but the image is more general than that.

(7) Adventure tourism has entered the picture in recent years, with customers paying steep prices to visit the undersea wreck.

(8) The company claims that it is presently involved in almost every undersea cable route in the world.

(9) He was one of history's greatest explorers, whose thrilling undersea adventures introduced the wonders of the deep to millions.

(10) The signals are transmitted either by satellite, microwave or by undersea cable.

(11) In Asia, the company's subsidiary owns undersea cables, fiber optic rings, and Web hosting centers in several cities.

(12) It was during this time that he began planning the creation of a new and very different submarine to be used in undersea research.

(13) Telephone companies first employed satellites to connect calls where there were no undersea cables.

(14) Some coral reefs - undersea gardens that act as shelter and nursery to a wide range of marine species - were crushed by the waves.

(15) The beautiful coral reefs made the undersea world even more splendid and fantastic.

(16) A company partly owned by the Indian government is buying a critical part of the world's undersea cable network.

(17) Hydrothermal vents result from undersea cracks in the earth's crust, which allow lava and hot fluids to seep out.

(18) A damaged undersea transatlantic cable is being blamed for causing havoc for Net and phone users in the UK last night.

(19) Marvels of integration, the reefs are like bustling undersea communities.

(20) By this stage the undersea cable from Java had reached Darwin and the northern tip of Australia was at last connected to the rest of the world.