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.
House Research Department ï½ 600 State Office Building ï½ St. Paul, MN 55155 ï½ 651-296-6753 ï½ www.house.mn/hrd/ Salaries for legislators The Minnesota Constitution provides that legislatorsâ compensation is set by law. The annual salary for representatives and senators is $31,140. The House and the Senate each can designate three leadership positions to receive up to 140 percent of the compensation of other members of the legislature (this is an additional $12,456 per year). The most recent salary increase for legislators was 5 percent in January 1999.