What is the water molecule's characteristic "bent" shape due to?

a. single covalent bonding
b. tetrahedral bonding and 2 pairs of non-bonding electrons
c. nonpolar covalent bonding
d. ionic bonding

B

Explanation:

A water molecule is made up of an oxygen molecule bonded covalently to two hydrogen atoms. Each of the hydrogen atoms shares an electron pair with the oxygen stabilizing their electron configurations to 2 and that of oxygen to 2.8. The oxygen atom will, therefore, have two extra pairs of unbonded electrons that occupy space and repel each other include the bonding pair electrons.   Due to these repulsive interactions, all these electron pairs arrange themselves into a tetrahedral geometrical shape in space with the angles between the pairs being 109.5 degrees.

i don't know what the picture looks like but i can take a guess and say maybe basidiomycetes?

i think the miocene epoch spans the time from 23 million to 12 million years ago.