21.   For instance, a restaurant may have great food, but its survival may be threatened by poor service, bad locations or poor advertising.

22.   General approval existed for intervening in Bosnia because it was a sovereign state and its survival was threatened not only by rebels but outsiders from Serbia and Croatia.

23.   Increasingly, the booksellers association is involved in litigation as independents fight back any way they can against changes they see as threatening their survival in the industry.

24.   In the process, it has threatened the survival of rare plants and reduced food and shelter for wildlife.

25.   It threatened the survival of civilization.

26.   North Korea is assumed to want the bomb because it feels its survival is threatened.

27.   One type of stress that would threaten the survival of Martian bacteria would be the sudden and massive acceleration caused by the initial impact by comet or asteroid.

28.   Sharp, rapid increases in temperature might transform the biosphere in catastrophic ways, conceivably threatening human survival.

29.   She said she feared that terrorism in the area of the endangered mountain gorillas will further threaten their survival.

30.   Some hunker down, their survival threatened.