Article Writing Homework Help

Need help with my writing homework on Climate and Storms. Write a 750 word paper answering; A low pressure region is developed in the Atlantic and high pressure region in Peru in a normal year and therefore trade winds flow strongly from the east to west in the pacific and therefore warm waters are carried westward, in el Nio years the low pressure region is replaced by a relatively high pressure region in the pacific and this reduces the strength of trade winds and therefore there is an accumulation of warm water in Peru, in la Nina periods results after the el Nino period whereby there is an accumulation of cold water in the pacific.