A gas filled weather balloon floating in the atmosphere has an initial volume of 850.0 L. The weather balloon rises to a region where the pressure is 56.0 kPa , and its volume expands to 1700.0 L. What was the initial pressure on the weather balloon?

Asher cycles 12 miles in 16 hours. what is his speed?

Which radioisotope is used in dating geological formations?

Global climatic patterns are changing because of the melting of polar ice caps. the melting of polar ice caps is an example of the interaction between the atmosphere and cryosphere cryosphere and geosphere hydrosphere and geosphere biosphere and cryosphere