When a river flows into the ocean, the level of the salinity at this spot: Stays the same because they don't mix increases because it brings more salt decreases because the fresh water doesn't have salt​

1. b.

2. d.

3. a.

5. d.

6. c.

these are the only ones that i know, i hope this , and good luck.

straight probes are used primarily for measuring flow as it is approaching the test area. its geometry allows the probe to be mounted so that it is in the direct line of airflow.