When your diaphragm pulls down, it is making room for the lungs to expand. The lungs get bigger with air and pushes the diaphragm down. The diaphragm also lowers the internal air pressure. Outside of your body, the air pressure is greater and you suck in air when you inhale. The air then expands your lungs like two balloons being blown up. When your diaphragm relaxes, it moves up and the cavity inside your body gets smaller.
Merchandise coordinators earned average annual salaries of $31,000 as of 2013, according to the job website Simply Hired. Minimal requirements for the job usually include a high school diploma and two or more years of experience in retail merchandising.
The average hourly wage of a part-time greeting card merchandiser was $8.17 as of 2013, according to the job site Indeed. Many part-time merchandisers work 15 to 25 hours per week. Those who work 15 hours per week earned $122.50 per week or $6,370 per year.