As altitude increases, the available amount of oxygen to sustain mental and physical alertness decreases with the overall air pressure, though the relative percentage of oxygen in air, at about 21%, remains practically unchanged up to 21,000 metres (70,000 ft).
  State legislators in Texas (both representatives and senators) make a salary of $7,200 per year.
Type of Employer. A claims representative's salary can vary according to the types of employers for which he works. For example, claims representatives who are self-employed earn annual salaries of $36,172 to $72,833, according to Payscale.com. Claims representatives that work for the federal government earn salaries of $42,860 to $72,833 per year.