Question

A tree which does not have any node other than root node is called a null tree

Answer 1

Answer:

Explanation:

In computer science, a 'tree' is a widely used abstract data type (ADT)—or data structure ... A tree can be empty with no nodes or a tree is a structure consisting of one node .... with the root at the top: The root node is a greater container than any other node. ...... Being the topmost node, the root node will not have a parent.