Question

you are given a sample of water that is brackish density of 1.010 - 1.020. what would you expect the density of a sample that comes from a river to have?
1.020 - 1.030
1.030 - 1.060
1.0 - 1.010
1.0

Explanation:

River water is fresh water. Fresh water has a lower density compared to brackish water (which has some salt content). The density of pure water is approximately 1.0. River water may have some very minor impurities but is still close to the density of pure water.

Answer:

1.0