Weather &climatw Flashcards
(8 cards)
What is weather and climate ?
Weather is the conditions of the atmosphere such as temperature and presence of rain in clouds .Weather changes daily
Climate-The average weather condition of a location over a long period of time
Air pressure
Air pressure is caused by the weight of huge numbers of air molecules that make up tha atmosphere
Which layer of the earth atmosphere does weather happen?t
Weather happens in the troposphere that is close to the ground
What climate happens when air pressure is high ?
When air pressure is high their skies are clear and blue
The high air pressure causes air to flow down and fan out when it gets near the ground,preventing clouds from forming.
What happens when air pressure is low?
When air pressure is low air flows together the upward where it converges ,rising ,cooling and forming clouds .
What causes wind?
Wind is formed from air flowing from an area of high pressure to an area of low pressure
What is air made of
78%nitrogen
21%oxygen
1-4% water vapor
What is air pressure ?
The amount of force molecules exert on a given area.