Question

What are the controls of underpopulation?

Answer 1

First of it is overpopularion if it is then my msg is use copper-t for women and condom for men.
People must control their excitement you are not like villgers or poor muslims producing mint machine

Answer 2

Controllability measures the ability of a particular actuator configuration to control all the states of the system; conversely, observability measures the ability of the particular sensor configuration to supply all the information necessary to estimate all the states of the system.