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

The answer would be B. The amount of salt water in a marsh

Ifound this on google “solar system formation. scientists believe that the solar system was formed when a cloud of gas and dust in space was disturbed, maybe by the explosion of a nearby star (called a supernova). this explosion made waves in space which squeezed the cloud of gas and dust.” i hope this you for what your looking for.

C.about 10% i think