Activity This graph shows average temperatures and CO2 concentrations from 1880 to 2010. The black line shows CO2
concentrations, with the CO2 concentration numbers on the right side of the graph. The vertical bars show average
global temperatures, with the temperature values on the left side of the graph.
Part A
hour average global temperature trends?

Explanation:

"We are creating a prehistoric climate."  This is how clear and radical Bob Ward of the Grantham Research Institute on Climate Change is.  And there is no going back possible.  Cape Grim (Australia) is about to exceed 400 parts per million (ppm) CO2 concentration.

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.