11. What happens to atmospheric pressure as a person rises in altitude?
A. It's unaffected by changes in altitude.
OB. It decreases.
C. It changes based on the time of year.
D. It increases.

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

Need what is special about water as a compound? how does water regulate climate? what drives water evaporation?   why is the water vapor fresh water when it rises from the ocean? why might freshwater in the form of snow take longer to enter the water cycle again than liquid precipitation?   what is an aquifer? what role do people play in the water cycle? plz just answer as many as you can ! thx if you !

Hey, could someone me answer this? much appreciated!