Regardless of the reason of trip, the head of state or government. An ambassador or consul who is visiting the United States to serve in a foreign embassy or consulate. A government minister or cabinet member will be visiting for official reasons. The application is then forwarded to the appropriate US Consulate or Embassy overseas for further processing and, if eligible, issuance of the immigrant visa to the intending immigrant. Before the immigrant visa expires, the intended immigrant must show the immigrant visa at a U.S. port-of-entry. When an immigrant's immigrant visa is approved, he or she becomes a lawful permanent resident.
You must need to fill the required form to apply for foreign visa and to get that desired visa
You have to submit the original document and other information due to get the visa in time.
After completing all the tasks you will get your resource material for a visa in some days
You must apply for a Business Schengen Visa at the consulate or embassy of the nation into which you will be traveling the most during your business trip.
To take preparation you have to test yourself with practice question, join as much as you can an online test, need to keep general english level up, and test out by computer delivered outputs.
Individuals and circumstances influence how long it takes to apply for an F1 student visa. The entire process can take as little as one week, but it can potentially take several months in more complicated circumstances.
It varies depending on the country. It is difficult to say
You must need to know details about versity and how much it costs. Is it possible to work when you are a university student and little more things.