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.
for the superwealthy and some members of congress are superwealthy salary doesn t matter according to my analysis of center for responsive politics data 18 percent of representatives and senators in 2011 had an estimated net worth of $ 5 million or morethey probably wouldn t even notice if they got a raiseor an apples to apples comparison we have to look at what members of congress earned in the past and how much they could earn at other jobs if representatives were paid today what they brought home in 1992 adjusted for inflation they could expect a $ 43000 pay bump bringing their earnings to $ 214000