The water cycle

when it rains,the water runs along the ground and flows into rivers or fallsdirectly in to the sea .A part of the rainwater that falls om land percolates in to the ground.This is stored underground throughout the rest of the year.Water is drawn up from the ground by plants along with the nutrients from the leaves as water vapor and returned to the atmosphere .As it is lighter than air,water vapor rises and forms clouds.The winds blow the clouds for long distances and when the clouds rise higher,the vapor condences and changes into droplets,which fall on the land as rain .Although thus is an endless cycle on which life depends ,man's activities are making drastic changes in the atmosphere through pollution which is altering rainfall patterns.This had led to prolonged drought periods extending over years in countries such as Africa,while causing over years in coutriessuch as Africa ,while causing devastating floods in countries such as the UA.The ELNino stroms due to these egffects have ranged many places in the last few years.