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 Colorado state representive earn? Answer Legislators receive a salary, travel and per diem expenses, life and health insurance, a pension, and other perquisites â¦ related to the job. Salary Members of the General Assembly receive an annual salary of $30,000, paid at the rate of $2,500 per month. The salary was set at its current figure in 1998.