What I find fascinating is how in fact we are dependent on Natrium (https://www.youtube.com/watch?v=J3HivpHP-5I), presumably because our organisms originated from oceans to begin with.
Yet still, if dominating salt were Lithium or Potassium, we'd still probably happen to evolve, yet with slightly different cellular features.
I wonder why lakes aren't salty?
It's clear why rivers and lakes that eventually empty into the ocean are fresh. Rainwater washes the salt downstream to its ultimate destination.
But many lakes do not have an outlet that leads to the sea. Water flows in and evaporates. Where does the salt go in that case?
Or is it possible that the article doesn't tell the full story, and that salty rocks are confined to a limited number of areas?
Love any science article that provides a clear, scientifically accurate answer to any question my 6 year old asks me.
That's a lot of salt, though: "if the salt in the ocean could be removed and spread evenly over the Earth’s land surface it would form a layer more than 500 feet thick."
Supposing a terraforming species (like humans) never arose, will the ocean get saltier and saltier over the eons and eventually be inhospitable to all but the hardiest of microbes?
> By some estimates, if the salt in the ocean could be removed and spread evenly over the Earth’s land surface it would form a layer more than 500 feet thick, about the height of a 40-story office building.
Needless to say [almost] every land plant and creature on Earth would die in such an event. I just wonder (out of pure bizarre curiosity) what would happen if the salt in the ocean could be removed and put somewhere in the outer space - what part of the ocean life would survive and how much impact would it have on the land life.
This made me wonder towards if the ocean is therefore becoming saltier & if so, at what pace? Found: https://www.seeker.com/are-the-oceans-getting-saltier-176509...
It’s completely breathtaking how massive our planet is in every measure that matters. And then we find out how big Jupiter is, VY Canis Majoris... The universe is a wonderful place!
The US Geological Survey gives a slightly more nuanced answer (https://water.usgs.gov/edu/whyoceansalty.html), based (as I understand it) on comparatively recent progress in understanding this question.
It turns out that in addition to the "standard" explanation that the oceans' salt comes from rain dissolving rocks on land, another quite important contributing factor is the activity of hydrothermal vents on the ocean floor. As I understand it, the high temperature of the water emerging there helps it to carry very large amounts of dissolved minerals from deep in the crust back into the sea (and that our models of ocean salinity wouldn't work without this contribution).
Is ocean salt equilibrium?
I can think in so many memes rite now lol
Why is there fresh water?
If a lightning strikes the ocean surface are the salty regions the most conductive ones and thus deadly?
Posing this question to a young earth, christian, literal bible believer will generate interesting conversations.