Question

the salinity in salt marshes can vary throughout the day because ____ a. river flow changes throughout the day b. the amount of salt water in a marsh depends upon ocean tides c. daily winds and rains result in salt and fresh water mixing d. salt water collects in the lowest elevations please select the best answer from the choices provided

Explanation:

The salinity in salt - marshes varies mainly due to the influence of ocean tides. Tides bring in or take out salt - water, changing the salt - water amount in the marsh. River flow changes may have a minor impact, but not the main cause of daily salinity variation. Daily winds and rains can contribute to water mixing but are not the primary factor for daily salinity changes. Salt - water collecting in low elevations is more about spatial distribution rather than daily variation.

Answer:

B. the amount of salt water in a marsh depends upon ocean tides