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.
How much does a Customer Service Representative make? The national average salary for a Customer Service Representative is $36,859 in United States. Filter by location to see Customer Service Representative salaries in your area. Salary estimates are based on 75,528 salaries submitted anonymously to Glassdoor by Customer Service Representative employees.