Water has many sources but most of the world gets there water from oceans or underground springs or wells. The Human body is 70% water so this proves that water is one of the most important Basic Human Needs. If Humans or animals do not get enough water they can get dehydrated and die. Since water is one of our most important BHN's we should protect it from pollution and contamination. When people misuse oil or chemical product it can pollute our water supply.
There are many
threats to Water but my threat to water is
Oil Spills.
Oil Spills are becoming a bigger threat every day because more countries use
more oil every day to serve their populations. So our water gets polluted
by careless mistakes, worldwide
demand and the use of oil around the world. I think If people were more careful
with the oil we have we could save our water supply before it is too late. 
Oil Spills can be stopped or contained by making Oil tankers lighter and more maneuverable. If they were lighter they could maneuver out of the way of rocks, land or reefs to prevent oil spills and if they were lighter they would carry less oil so if there was a spill if could be better contained. This can only help with one kind of Oil Spill a non-deliberate Oil Spill. It is impossible to stop deliberate Oil Spills.