Adobe Acrobat installation question

I just installed Adobe Acrobat Reader 9.0 from adobe.com

I got 2 unanticipated other installations: Adobe AIR and Adobe.com

I don’t anticipate using these (unless someone wants to extol their virtues).

Can I uninstall them without causing problems for the Acrobat Reader? (Or is it like an iTunes-Quicktime type of thing?)