Limited water resources have promoted scientist developed ways to remove salt from seawater to make it usable for drinking in farming this process is called

Desalination

Explanation:

High salt or Saline water sources are unsafe for human consumption and must have their salts removed I. order to drink.

Desalination

Explanation:

Over the years scientist have realised that the resources of the world are limited in which water is not left out, in order for sustainability of this resource. Scientists employed the process of desalination in order to remove or extract salt or high saline from water, in order to foster reuse and sustainability

a and b because with the other three, they simplify to something else.