What role does cellular respiration play in the water cycle

Which expression is equivalent to 4 square root 6 divided by 3 root 2

The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal line for an ideal gas whereas the curve for 200°c does not?

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?