I think observation and measurable.
<span>Mangroves store water in their leaves. some also grow pencil-like roots that stick up out of the dense, wet ground like snorkels. These breathing tubes are called pneumatophores, allowing the mangroves to cope with flooding/ survive in water
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<span>It was made in stars that lived before the solar system formed.
Hope this helps!
-Payshence xoxo</span>