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..
How are local winds and global winds differ? local winds-are winds that blow over short distances caused by unequal heating of the earths surface in a small area. global winds-are winds that blow around the earth from â¦ the north pole to the south pole.
Sea breezes and land breezes are two types of local winds. Sea breezes blow from water to the shore while land breezes blow from the shore to the water. Both sea and land breezes are a result of a difference of air pressure and temperature. Sea breezes form on hotter days because the land warms faster than water.