Which of these is the most practical method to prevent global water shortage?

The answer you were looking for is

Conserve, recycle and reuse water in households.

The person above who answered wasn't helping you at all if you were trying to do the test for flvs.

Your Welcome,

Nathan L.

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.