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The following inferences have been made from the above passage:

1. Geological research has successfully decoded the entire distribution and sustainability of mineral wealth of the island nations of Indian Ocean.
2. Advancing geological studies can boost sustainable growth by addressing the critical issues related to land and groundwater.
3. Mining is the only industry that supports the economies of these island nations.
4. Environmental conservation efforts can be postponed while the geological research aims to optimize the extraction of minerals.

Which of the above inference/s is/are valid?

  • A.1, 3 and 4
  • B.2 and 4
  • C.2 only
  • D.1 only

Answer: C

Only inference 2 is valid.

The passage says geological research can aid in addressing groundwater management, soil erosion and landslide prevention, thereby supporting sustainable development, which is inference 2.

Inference 1 overstates: the passage says research can help them better understand the distribution of minerals, not that it has decoded everything. Inference 3 is unsupported: nothing says mining is the only industry. Inference 4 contradicts the passage, which says the knowledge will enhance environmental conservation efforts alongside responsible mining.

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