The most common elements in the Earth’s crust are rarely found on their own. They are usually found combined. Suggest why this is.

Because there are other elements that get in touch with it. And over time with, evolution, erosion and temperature their particles tend to mix. So what once was very common became mixed over time.

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Cricetus Cricetus · Answer 2 · 2021-09-22T09:26:43+02:00

The most common element throughout the Earth’s crust that are rarely found on their own will be "Astatine".

Astatine seems to be the very most uncommon or infrequent natural substance throughout Earth's crust that occurs just under 1 gram at any time.
It's indeed exceedingly impossible to make Astatine-210, particularly in perhaps the most useful state, don't just in less and less astatine present in the fundamental natural world.

Thus the above answer is correct.

Learn more about Astatine here:

https://brainly.com/question/1919540