Comprehension : Comprehension

Q 40 / 466

UPSC CSE Prelims 2025

Directions: Read the following passage and answer the item that follow the passage. Your answer should be based on the passage only.

Passage
The history of renewable energy suggests there is a steep learning curve, meaning that, as more is produced, costs fall rapidly because of economies of scale and learning by doing. The firms’ green innovation is path-dependent: the more a firm does, the more it is likely to do in the future. The strongest evidence for this is the collapse in the price of solar energy, which became about 90% cheaper during the 2010s, repeatedly beating forecasts. Moving early and gradually gives economies more time to adjust, allowing them to reap the benefits of path-dependent green investment without much disruption. A late, more chaotic transition is costlier.
With reference to the above passage, the following assumptions have been made:

  1. Path-dependent green investments will eventually most likely benefit growth as well as public finances in a country like India.
  2. If other green technologies follow the same pattern as that of solar energy, there will most likely be an easy green transition.

Which of the above assumptions is/are valid?

EXPLANATION

Correct Option (A)

Statement I is valid. The passage describes path-dependent green innovation as leading to a steep learning curve, rapid cost reductions due to economies of scale and learning by doing, and smoother economic adjustments when implemented early and gradually. These outcomes-reduced costs, increased efficiency, and minimized disruption-are inherently beneficial for a country's economic growth and public finances. Although India is not specifically mentioned, the principle articulated in the passage is universally applicable to economies undertaking green investments, making the assumption that such investments would benefit India a reasonable and valid inference.

Incorrect Options:

  • Statement II is not a valid assumption. The passage cites the collapse in solar energy prices as a strong example of the learning curve effect in green technology. However, it does not generalize that all other green technologies will follow the exact same pattern of price reduction or guarantee an "easy" green transition. The passage states that an "early and gradual" transition helps avoid "much disruption," which is distinct from an "easy" transition. Therefore, assuming an "easy" green transition for all other technologies based solely on the solar energy example is an overgeneralization and lacks direct support from the passage.
  • Option B is incorrect because Statement I is a valid assumption.
  • Option C is incorrect because Statement II is not a valid assumption.
  • Option D is incorrect because Statement I is a valid assumption.