Yes, a US resident can travel to Canada.
1. A resident Alien 2. Non- resident Alien 3. enemy Alien 4. Refugees 5. illegal Alien
Resident Alien
Yes, as a US permanent resident, you can travel to Canada.
A resident alien?
You'll need a US PASSPORT to return to the US.
an alien
Yes.
As an illegal alien you generally will not be able to enter Australia legally. You will need to have a Passport for USA and you will be able to stay for 3 to 6 months without a visa.
Nope.
Resident Alien
Yes, US citizens can travel to Australia.