What was the first US law to restrict immigration

On August 3, 1882, the forty-seventh United States Congress passed the Immigration Act of 1882. It is considered by many to be "first general immigration law" due to the fact that it created the guidelines of exclusion through the creation of "a new category of inadmissible aliens."

Explanation:

greenland

c tundra

iceland is grassland

the answer is "by providing data about careers and annual mean wages"