My .doc size is 10MB but when i tried to attach a single picture it was not enough space. How can i increase my MB?
The space allocated is the same for everyone. I would not want a 10Mb document attached to a discussion anyway.
As Bob suggested, you could try compressing it.
I'm not a teacher, so please consider any advice I give in that context.
If the problem is the image, zipping it won't help: the commonest formats (GIF, JPEG and TIFF) are already compressed, and so won't compress any further.
Why do you need to attach a Word document with such a large picture in it?