Can you query the internet on a mac ibook?

Answer:

Yes, unsurprisingly. If anyone says no, they should be ashamed of themselves.
yes its similar to a regular computer only mac as you would expect
Yes, use the Safari Browser (the Compass Icon on the Dock) OR Install Firefox from the Apple web site.
I'm glad you asked this cross-question and I'm even gladder UbiquitousGeek answered it so dogmatically - it's cleared up a lot of confusion.