Correct Option
The passage establishes a clear interdependence between biodiversity and the hydrological cycle. It explicitly states that water passes through various ecosystems, involving plants, animals, microorganisms, and soil, where it is "cleansed and made fit for consumption." Additionally, it notes that "vegetation and soil drive the movement of water." These statements collectively indicate that biodiversity is crucial for maintaining the natural processes of water purification and circulation, thereby sustaining nature's ability to recycle water.
Incorrect Options
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Option (2): While the passage emphasizes that biodiversity plays a vital role in cleansing water and making it potable, it does not make the absolute claim that potable water cannot be obtained without the existence of living organisms. The focus is on the natural mechanism of purification rather than an exclusive dependency.
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Option (3): The interaction among plants, animals, and microorganisms is an underlying premise of biodiversity's function within ecosystems. However, the most critical inference from the passage is not merely the fact of their interaction, but rather the significant impact of this interaction on the functioning and sustainability of the hydrological cycle.
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Option (4): The passage discusses how the hydrological cycle influences biodiversity's function and their mutual interdependence. It does not, however, address the origin of living organisms or assert that their existence is contingent upon the prior establishment of the hydrological cycle. This inference extends beyond the scope of the provided text.