CLIMATE
WARMING
Weather is changes we see and see outside from day to
day.It might rain one day and be sunny the next day.Sometimes is hot.Weather
also chang place to place.
People in one place might be wearing shorts and playing
outside,at the same time people are away might be shoveling snow.
Earth rigid
crust is made up of enormus pieces called tectonic plates.These plates vary in
size and shape.They also in the amount they move over the more flexible layer
of the muntle below them.Heat from deep within the planet causes plates
move.This movement happens so slowly that humans dont feel it.But some of earth
plates move as much as a few inches each year.
This might
not seem like much ,but over millions of years ,it causes the plates to move thousand
of miles.
Movement
of surface plates changes earth surface features very slowly.It take millions
of years for pleates to move enouhg to create lond forms.Some land features
form when pleates are crashed together.At time forces within earth push the
edge of one plate up over the edge of a plate beside it,this dramatic movement
can create mountains,volcanoes and deep treaches in the ocean floor.
At another
times,plates are crushed together in a way that causes the edges of both plates
to crumble and break.This event can form jugged mountain ranges.If plates of
the ocean floor move apart,the spaca between them widens into a giant crack in
earth crust.
