(Option "C" is the correct one) Water resources is the topic most related to the theme of conservation in green literature.
Taking into account that only 3% of the Earth water can be used as potable water, water in the green literature focuses on raising awareness of safeguarding water ecosystems. With the rapid increase in population as well as environmental risks, water conservation has become a major issue. For that reason, the green literature pursues to minimize the use of natural resources as in the case of water, reduce harmful effects in ecology and create a clean environment.