When the daughter cells split or divide from the parent cell, it is called

Cytokinesis

Explanation:

The process of cell division in which a  parent cell breaks or divides its cell wall to produce any number of daughter cell is called Cytokinesis

A  cell divides by two processes and both these process have cytokinesis stage–  

a)Mitosis – In mitosis , parent cell divides into two daughter cells

b)Meiosis – In meiosis, parent cell divides into four daughter cells

The cytoplasm between the daughter cell divides in cytokinesis which is the last stage of any cell division mechanism.  

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint