Conserving water can be used for survival in a dry environment.
Survival is the continuance of individual and species life.
Conserving water can be used for the continuance of life in a dry environment.
Conserving water can be used for the continuance of life in a what environment?
(a) H20
(b) rainy
(c) aquatic
(d) soil
(e) undersea
(f) bogs
(g) dry
(h) fens