What word or two-word phrase best describes the shape of the hydrogen cyanide ( hcn ) molecule?

The best word describes the shape of HCN molecule is Linear
The type of hybridization of carbon in HCN is sp due to it forms triple bond and surrounded from two sides with two bonding pairs and according to VSPER (Valence Shell Electron Pair Repulsion theory) the two pairs must be as far from each others as possible so it takes the linear shape  

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