Respiratory exchange ratio. The respiratory exchange ratio (RER) is the ratio between the amount of carbon dioxide (CO2) produced in metabolism and oxygen (O2) used.[1] Humans typically inhale more molecules of oxygen than they exhale of carbon dioxide because air contains much more oxygen by volume.
Jackson Hole Wyoming Weather & Seasons. 1  The busiest season in Jackson is the summer, particularly in July and August where visitors can enjoy temps between 70 and 90 degrees. September is still summery in temperature (besides cold nights), but is quieter. The fall months, October and November, are unpredictable.
JACKSON, MS (Mississippi News Now) -. Festivities for the annual Black Rodeo have kicked off in Jackson Saturday morning. Rodeo enthusiasts met up around the Fairgrounds for the Black Rodeo parade. Riders and riding groups filled the parade route passing out candy and pumping the crowd up for the rodeo. Saturday's shows are scheduled for 2 p.m. and 7 p.m. at the Mississippi Coliseum. Copyright 2013 MSNewsNow.