What have chemists done to people conserve energy?

When employed outside the United States by a U.S. air carrier.

Explanation:

Most times companies in U.S do post for job adverts and during this advertisment they get several CV's and individuals interested, in situations when the applicant can't speak English nor write it would be seen that the company would have to employ such fellow so far he or she has the qualifications to fit into the specified job role. The applicant may not necessarily write an English exam to come in or apply for a visa pass as these all would be made available through the company inviting them over for their services.