please help me with this assignment.

a process that uses more resources than neccessary can be taken care of by the system administrator. list down the commands that help you to administer such a proccess

This site has a policy against doing people's homework problems. You will learn more by looking for the answers yourself and studying the material.

When an instructor gives you an assignment, especially at the University level, the real goal is not just "to pass the course" but "to learn something." To "learn how to be able to do something."

For example... let's say that you landed a job administering Linux systems for a company. (Since you are studying computers, one must presume that you're interested in having that sort of thing happen to you someday...) Suddenly, you notice that you have some run-away processes being launched by junior programmers at one of your company's most important customers. It's your job to know how to solve that problem .. do you?

Uhh, no. Because you cheated on the assignment instead of learning the material. You (or your mum and dad) paid all that tuition, and for you it did diddly-squat.

Let's not resort to bashing, please.
Indeed, homework questions are not allowed on these forums. I recommend you do the research yourself; believe me, in the long run you get more out of it.

Well, it's the community-college instructor in me.

There's a difference between "getting the grade" and "getting the knowledge," and the process is not always easy but that's part of why you have instructors. I like to tell my students that they will do most of their learning outside the classroom. I also like to remind them that the Internet, powerful as it is, can (if used as a grand electronic cheating tool) "cheat you out of what you came here for... and you may as well be watching football right now." Dig for the answers, by whatever means, and express the answer as your own original work even if that's just a sentence or two.

"The diploma, really, is secondary. It's just a memento of what you did and how you did it."

In Windows(ancient history now) I used to use this tool called task manager which wasn't really powerful but did the job most of the time. In most unices and unix-like systems there is command called halt(or shutdown -h now) which is quaranteed to remove the annoying process unless the kernel has paniced, but don't worry, you can do it manually too, though I'm quite new to linux so I've never done it but I think it was called something like "unplug"