Today though, there is evidence showing that marine resources are as seriously ( ) as those of the land and the air. In fact, in some ways the ( )to fish are more alarming than the threats to animals and birds. This is because fish is a much needed food ( ) , as people throughout the world depend on fish as an important part of their( ). It is reported that to( ) food demands, 20 billion pounds of fish are ( )every year in the North Atlantic alone. Sea resources are also rapidly ( ) in many other parts of the world. Scientists now believe that food ( ) from the sea won’t last forever. They warn that ( ) fishing will destroy fish reserves within the next few years. They also warn that the decline in fish supply will cause ( ) in some parts of the world.