hallo,
United States visa is not required for citizens of United Kingdom for a stay up to 90 days.
it's true if you travel to the US on a tourist purpose.
http://united-states.visahq.com/requirements/United_Kingdom/
There are no legal requirements to TOUR the UK. However, you may need an appropriate visa to ENTER the UK.
Nobody can work in the visa on a visitor visa. Short duration courses like cookery class that will not add any credits to a course can be attended using a visitor visa. But working in the US, that will enable you to draw salary is not allowed on a visitor visa.
Does not matter if you are a US Green Card holder or not, when you have an Australian visitor visa, you can go there.
in the visitor's visa
There is no such thing as a Puerto Rican visa. Puerto Rico is part of the United States and if a visa is needed by a visitor it will be a US visa.
You'd be better off to obtain a visa which allowed you to seek employment in the US, so that you could establish permanent US residence, which is one of the requirements of a foreign volunteer to serve in the US armed forces (another being a declaration of intent to obtain US citizenship).
No, you need to apply Canada visitor visa~
No need for a visa, as the UK is a participant in the Visa Waiver Program.
Not everyone needs a visa to visit the US since under the Visa Waiver Program passport holders of UK, Australia, Portugal and other selected nations may travel to the US visa free if travel requirements are met. Other foreign nationals however need visas
If you are from a country whose citizens need a visa to enter the US, then you should apply for a visa at the nearest American embassy or Consulate General in Australia.
It depends what country your passport is from. Some countries don't need visas to enter the US temporarily, but most do. Search "visitor visa to US" for a list of countries. Multi-EntryCanadian visas allow visitors/workers/students with visa requirements to travel to foreign countries and back. Single-entry visas allow visitors to travel within the continental North America and back without requiring a new visa as long as all other requirements are met and they have legal status inside Canada.
Definitely. The ability to support yourself when you are in the US on a visa is one of the most important and basic requirements for a visa. The USCIS makes sure that the applicant does in no way become a public charge to the country.