31.   Nor, in the case of many Cubans suffering medical conditions, would they have the treatments they need to sustain life.

32.   Nonetheless, Kohl admitted to being impressed with the respect for the environment held by native people whose lives are sustained by hunting and trapping.

33.   Or to jump through welfare era hoops to get Medicaid, food stamp, and other benefits that sustain life in lousy paying jobs?

34.   Plants in particular could be vital to sustaining life on deep-space voyages.

35.   Reducing agricultural runoff would increase the salt in the sea to the point where it could no longer sustain life.

36.   Some sunlight should be able to penetrate even a kilometer-thick layer of ice, Sagan said, to sustain life below.

37.   Strokes occur when sections of the brain are deprived of oxygen, which is needed to sustain cellular life.

38.   Thanksgiving is a harvest festival honoring all the living things that sustain life.

39.   The farmers hope so, too, saying they want El Aguacate to become a place that sustains life once again.

40.   The first believes the world is already nearing its carrying capacity to sustain human life.