Biodiversity must be conserved as it plays an important role in many ecosyctem services that nature provides.Explain any two services of the ecosystem

(i)Narrowly ultitrian arguments for conserving biodiversity are obivous.Humans derive countless direct economic benefits from nature- food,firewood, industrial products and products of medicinal importance.
(ii)Broadly utilitarian argument says that biodiversity plays a major role in many ecosystem services that nature provides.The fast dwindling amazon forest is estimated to produce,20 percent of the total oxygen in the earth’s atmosphere through photosynthesis.