Approximately how long did the vietnam conflict last? 1950-1960 1959-1975 1959-1979 1960-1980

I believe it started on 1954 and ended on1975

The answer to this question is  c. pharmaceutical accumulation  reclaimed water refers to the water that being used again after it already  used for agricultural purposes.this type of water often contains pharmaceutical accumulation because of the chemical fertilizer that is used for the plants is absorbed into the water.

The geographic feature in the westernmost corner of kenya is answer: the great rift vally