No. A leaf node is a node that has no child nodes. A null node is a node pointer that points to the null address (address zero). Since a leaf node has no children, its child nodes are null nodes.

THE POINT FROM WHERE THE LEAF ARISES IS KNOWN AS NODE.

THE DISTANCE between 2 consequitive nodes is known as internode..

from a node leaf arises but from the internode no leaf arises

internode is a part of stem as node is not but is a part of leaf

Two

the node, leaves are attached to the node by the petiole

It will be come a terminal node. Normally we call terminal nodes leaf nodes because a leaf has no branches other than its parent.