Study visa:

The US is the best choice for international students. About 1 million international students are enrolled every year. The top 16 universities in the world are in the USA. Higher study programs in the US are known for their exceptional quality standards in terms of learning experiences, intellectual rigor, and innovative practices. Throughout the world, colleges and schools have a wide reputation for inviting students from everywhere to learn from some of the biggest names in their field. There are plenty of options to choose from, all over the U.S., where you can pursue a Bachelor's, Master's, or Ph.D. at a top-ranked and globally recognized institution

Visit visa:

Generally, a citizen of a foreign country who wishes to enter the United States must first obtain a visa, either a nonimmigrant visa for a temporary stay or an immigrant visa for permanent residence. Visitor visas are nonimmigrant visas for persons who want to enter the United States temporarily for business, tourism, or a combination of both purposes.