The world’s oceans are getting saltier each year. If one takes the current rate of increase and projects backwards, it was not millions but only thousands of years ago when the oceans were salt-less, ie. fresh water. This is yet another hint the world is not billions of years old.
If salts have continually been dissolving from rocks and the ground via rainwater, falling over millions or billions of years, why are the rivers and lakes not salty? Much rainwater flows through rivers into lakes long before it flows into the ocean, thus the rivers and lakes should be salty if the oceans are getting saltier.