The NH3 molecular geometry (molecular shape) is trigonal pyramidal. The NH3 bond angles are 107 degrees because the hydrogen atoms are repelled by the lone pair of electrons on the Nitrogen atom.
Fermentation if oxygen is not present
<span>As far as I know about black snails is the fact that the Black Mystery
belongs to the genus Pomacea, Ampullariidae
family. This family is also often called Apple Snail, and it contains a nearly
120 different species of snails. I know that increase in the number of black
snails can best be explained by the high teperature in which black snails are.
It's the main reason of their reproduction.</span>