Labor certification is  a United States of America immigration process step. Its stated goal is to protect U.S. workers and the U.S. labor market by ensuring that foreign workers seeking immigrant visa classifications are not displacing equally qualified U.S. workers..
Confidence votes 24.1K. Local winds are caused by unequal heating within a small area. Global winds are created from all around the Earth due to breezes that make Wind. See nasa.gov/nasatv. Local winds are caused by unequal heating within a small area. Global winds are created from all around the Earth due to breezes that make Wind.
Why is one global wind pattern known as trade winds? They blow reliably in the same direction, at the same latitudes, year round. Sailing ships engaging in trade needed them so that they could make collections and deliveries whe â¦ n required, not just when the wind happened to blow.