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There isn't that much water on earth, this image does an amazing job of explaing the scale in the quickest way.

It also sort of explains how easy it would be for earth's water to have come from asteroid impacts.

https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/...

By far most of the water is in the oceans, which have an average depth of 3688m. 2% of the water is currently frozen, so one can easily estimate how much would the sea level raise, had it all melt.

EDIT: Corrected km to meters, as comment below points out.

For those reading this with incredulity I believe the above commenter made a typo - the average depth is 3688m, or 12,100ft.

I’m not saying it’s wrong, but this graphic is very difficult for me to understand. Is there any geographical significance to the location of the water blobs? No, right? But they also don’t include saltwater which is most of it. Right?

The big bubble is all water, frozen, sea, etc. The small bubble is all fresh (rain clouds etc), rivers, lakes. The smaller is lakes and rivers only.

Here's an article showing comparisons to various moon ice.

https://www.businessinsider.com/earth-water-ice-volume-versu...

It says liquid fresh water.

I don’t think the big bubble includes the ocean.

There are three bubbles.

Ah I see now

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