Can someone please explain Hydrogen bonding to me?

⭐Hydrogen Bonding. Hydrogen bonding is a special type of dipole-dipole attraction between molecules, not a covalent bond to a hydrogen atom. It results from the attractive force between a hydrogen atom covalently bonded to a very electronegative atom such as a N, O, or F atom and another very electronegative atom

Explanation:

thank for asking such a interesting question ☺

Organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.

I'm not sure but i will try to find out