Natural disasters are extreme, sudden events caused by environmental factors that injure people and damage property. wild tornado, white-out blizzard, raging wildfire, powerful hurricane all strike anywhere on earth, often without warning.
Thousands of people die each year due to natural disasters. It brings on situations that can range from merely uncomfortable to life-threatening.
There's little doubt,however,that natural disasters in most areas result primarily from human activities rather than natural processes.
the changes of the earth crust itself make the climate differs from place to place.This lead to the imbalance porprotion of the distributing of natural resources.For example,At the eastcoast of china is possessed by dense precipitation while the westcoast devoid of precipitation.