The higher salinity content in the lower Colorado River Basin relative to the hi
ID: 284073 • Letter: T
Question
The higher salinity content in the lower Colorado River Basin relative to the higher Colorado River Basin is considered to be contributed significantly by:
uncontrolled municipal wastewater discharge into the river
return of irrigated water containing high salt contents
uncontrolled industrial wastewater discharge into the river
atmospheric deposition of salts into the river
uncontrolled municipal wastewater discharge into the river
return of irrigated water containing high salt contents
uncontrolled industrial wastewater discharge into the river
atmospheric deposition of salts into the river
Explanation / Answer
The main reason is return of irrigated water containing high salts.
Although other forms of salinity like household usage and industrial discharge is present, the effect on salinity is neglibile compared to agricultural effect.
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