Thinning of the ozone layer in the
stratosphere is not the cause of climate change and global
warming. The small additional amount of UV light arriving at the
ground will not cause global warming. That UV light can cause
skin cancer and cataracts, that sort of thing, but not global warming.
If you remind me, I'll write the ideal gas law equations down on the board so that you can refer to them during the exam.
Gravity pulls downward on parcels
of air. The fact that pressure pushing upward on the bottom of a
balloon is a little stronger than the pressure higher up pushing down
on the top of the balloon results in an upward pressure difference
force. The upward pressure difference force is the bouyant force
mentioned in Archimedes law.