Markus has put off doing his homework so that he can play video games. his mother starts nagging him to do his homework. markus turns off the video game and does his homework to stop his mother from nagging. in this example, the nagging is a:

Nagging in this situation is shown as a way of exercising social control. Markus's mother had used nagging to enforce social control wherein she nags to make Markus does his homework instead of playing video games. Through, nagging his mother was able to make him comply and conform to what is expected of him to do, which is to do his homework before playing videogames

It allows water to resist freezing and thawing cycle.