Which reform is associated with the reduction of the role of the public sector in recent years?

Draw the shape of the following molecule:

${\mathrm{XeOF}}_4$
 

Draw the shape of the following molecule:

${\mathrm{BrF}}_3$

A rubber band stretches and reverts to its original position. Bubble gum stretches, but it would not return to its original position.

Is there any difference between the two processes? Discuss it with respect to plant growth. [Hint: Elasticity (reversible) Plasticity (irreversible)]