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olga55 [171]
3 years ago
11

Why do you need white blood cells in your body ?

Biology
2 answers:
Zolol [24]3 years ago
6 0
To fight infection, disease, and sickness
Ivanshal [37]3 years ago
3 0
So refer to them as the white ninjas because they fight infections
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During which time period was Earth a ball of hot liquid?
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The Geologic Timescale's "Hadean" era, named for Hades (Hell, well, we weren't feeling very imaginative that day), encompasses the Earth's origins. According to the evidence we currently have, the Earth's surface at that time was mostly made up of lava lakes and molten rock.

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After the lava lakes froze/crystallized over, such characteristics were maintained since there was no significant tectonic activity on the Moon (except for the local meteor impacts which screw things up a bit).

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2 years ago
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