What makes air in a balloon similar to mists of perfume?

What would happen if plants have very wide stems?





How does water pollution affect the viscosity of a river?


What makes air in a balloon similar to mists of perfume?
1) The pressure is just pushing to get out. And will go in all directions once it does. Similar to pollution:





http://www.stuffintheair.com/airqualityt鈥?/a>





2) The plants could get more water to the leaves, and would be stronger against high winds.





http://www.stuffintheair.com/weathervane鈥?/a>





3) Depends on what the pollution is. Most things would make the water thicker and flow more slowly. Some things, like a gasoline spill, have properties which would reduce the viscosity.





http://www.stuffintheair.com/water-pollu鈥?/a>





Here's a bit of a primer on water pollution.