weather Flashcards
what is the atmosphere
the atmosphere is a huge blanket of air surrounding the earth.
why is the atmosphere important
gives us air,retains heat at night, absorbs heat from sun
tropesphere
the tropesphere is the closest layer to earth, is is 12km thick, 75% of earths gases and 99% atmosphere water vapour
Natural greenhouse effect
letting heat in but not let much escape
latitude
distance north or south of the equator
axis
The axis links the north and south equator with an imagery line
how winds form
the sun heats different part fo the world unevenally
low atmospheric pressure
when air is heated it expands an becomes lighter
high atmospheric pressure
when air is colled and becomes heavier
atmospheric pressure
the weight of the air pressing down on earths surface