Biology - how do you account for the difference in the proporation of air in sample A and B​

Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!

shly.link/0tj3C

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )