Answer:
Tree sap flows over the leaf and preserves it.
Explanation:
Amber would preserve the image.
Chadwick did!
Hope this helps!
An atom of carbon has 4 electrons in its outermost shell, which means that
<span>its ionic charge is 4+ or 4-
</span>Si is in same group as carbon so its also 4+ or 4-
Germanium is 4+.
Sn is also 2+ or 4+
Pb is usually +2
