warm, less dense air rises

cool, dense air sinks

large, circular patterns of moving air

movement of air caused by differences in air pressure

bands of high and low pressure found about every 30 degrees of latitude

the curving of a path of a moving object from an otherwise straight path due to Earths rotation

winds that blow from east to west between 60 and 90 degrees latitude in both hemispheres

narrow belts of strong winds that blow in the upper troposphere

bands of high and low pressure found about every 30 degrees of latitude

the curving of a path of a moving object from an otherwise straight path due to Earth's rotation

winds that blow from east to west between 60 and 90 degrees latitude

narrow belts of strong winds that blow in the upper troposphere

winds that blow from west to east between 30 and 60 degrees latitude in both hemishpheres

winds that blow from 30 degrees latitude almost to the equator in both hemispheres

area around the equator where there is very little wind ("dull", "sluggish")

area around 30 degrees latitude in both hemispheres where there is very little wind

winds that blow from west to east between 30 and 60 degrees latitude in both hemispheres

winds that blow from 30 degrees latitude almost to the equator in both hemishperes

area around the equator where there is very little wind ("dull", "sluggish")

area around 30 degrees latitude where there is very little wind

winds that blow from west to east between 30 and 60 degrees latitude in both hemispheres

winds that blow from 30 degrees latitude almost to the equator in both hemispheres

area around the equator where there is very little wind ("dull", "sluggish")

area around 30 degrees latitude in both hemispheres where there is very little wind

winds that blow from west to east between 30 and 60 degrees latitude in both hemispheres

winds that blow from 30 degrees latitude almost to the equator in both hemispheres

area around the equator where there is very little wind ("dull", "sluggish")

area around 30 degrees where there is very little wind

winds that blow from west to east between 30 and 60 degrees latitude in both hemispheres

winds that blow from 30 degrees latitude almost to the equator in both hemishperes

area around the equator where there is very little wind ("dull", "sluggish")

area around 30 degrees latitude where there is very little wind

cool air moves down a mountain slope towards a valley

warm air rises up a mountain slope from a valley

cool land air flows to the ocean at night, causing warm ocean air to rise

cool ocean air flows to land during the day, causing warm land air to rise

cool air moves down a mountain slope toward a valley

warm air rises up a mountain slope from a valley

cool land air flows to the ocean at night, causing warm ocean air to rise

cool ocean air flows to land during the day, causing warm land air to rise