what are the benefits of nuclear power?

Nothing long here, just a quick list: Compact size/weight for high power over long periods of time. Less refueling. Quiet. No air/water pollution. Non-flammable, relatively easy to contain in a confined space compared to gaseous fuels.

thanx for helping,but i need some more detail about pros and cons (some statistics would be great;for ex. how long could the fuel be used,what kind of elements used [like reactors,an uranium-plutonium combination used in there?] )

Why should we do your goddam homework for you?

are you obliged to do?i've just asked for any ideas,not forced to reply.so you're completely free,if you want-you can write.got it?

You asked for some ideas, you got some, but then you said that they were not enough. You asked for most of your assignment to be done by others.

not really, he just gave him like a summary of what the pros cons are not a huge explaination

EXPLOSIONS!

As a former submariner,maybe I can help.
I served aboard the USS Hammerhead (SSN663) for several years,so I do have some experience with the subject.

Nuclear power has the advantage of speed,for one.
A nuc boat can go much faster the a diesel boat.It can also stay submerged longer without having to refuel.
The SSBN subs (ballistic missile) are required to hide,to avoid detection.
If they have to constantly refuel,they cant do it.
Nuc boats are quieter then conventional subs.
Since a sub relies on stealth to survive,the quieter it is the better.

On surface ships,one of the big advantageds is that it doesnt need to refuel.
It can go further faster.
As an example,the first nuclear powered carrier was the USS Enterprise.
She has had her core replaced once since she was commissioned.
There are many more advantages,but I wont give you all the answers.
The rest you have to do on your own.