Since I got a propane heater in my apartment three of my plants have dropped nearly all their leaves. There hasn't been a huge temperature difference, could the propane be killing them?
Yep Because it gets you off school and the majority of time it is a false alarm Last year the fire alarms in my school were broken and they went off about 30 times in 3 days. they eventually just told us to ignore it but on the third day there was a fire in the school kitchen.. AND WE ALL IGNORED IT UNTIL WE SAW THE SMOKE! and then we all ran It was really funny!
It sounds like there is no attempt made to remove the air that is in the jar and outside the balloons. In the chest, the lungs fill all the available space; there is little or no air outside the lungs. With air in that space, the jar is a model of someone with a pneumothorax. Also, the chest is able to expand to accommodate the increased volume of the lungs when filled, whereas the jar doesn't expand.