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.
Let's take a look at how the state senators' pay scale varies between Arkansas and California. In Arkansas, a lawmakerâs annual salary is a paltry $14,067; while in California, state senators and representatives are paid an annual salary of $110,880.he state senatorsâ pay scale dips down in South Carolina; state lawmakers pull in a lowly annual salary of $10,400, and they get only $95 per day for meals and housing. Let's not even compare this with the northern end of the ACC, Maryland (salary: $40,500).