Yes.You can change its inside or outside
The answer is B. Paleozoic
This era was the first era where insects, amphibians, and reptiles roamed the Earth.
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As diatoms are made from silica this makes diatomaceous earth very abrasive, and so the sharpness enhances the particles as a pesticide. Diatoms are also useful in forensic studies. If a person has drowned then diatoms are able to enter the human body.
True water from nature has no taste
Rare climate event caused by darwin finches of you look it up the whole article comes up on it