Describe the difference between rooted and unrooted phylogenetic trees

Rooted trees shows the most basal ancestor of the tree. Unrooted phylogenetic tree does not show an ancestral root.

In a phylogenetic tree, every node represents a species. ... A rooted tree is a tree in which one of the nodes is stipulated to be the root, and thus the direction of ancestral relationships is determined. An unrooted tree, as could be imagined, has no pre-determined root and therefore induces no hierarchy.

i believe you meant to say air rather than hair so the answer is below ")

the dead sea, the lowest place on earth at 430 metres (1,410 ft) below sea level, has a correspondingly high typical atmospheric pressure of 1065 hpa.

answer; i believe the answer is hydraulic action;