Answer:
Destructive positive feedback loop
Step-by-step explanation:
Destructive positive feedback loop - it is a type of loop where output of any act is input of other. As we know the output and input of two act drive the whole nation, thus this driving force can let the system away from neutral condition or sustainable condition.
this type of feedback loop force system to carry on the same change in same direction. example - continuous melting of ice from the glacier.